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class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Sadržaj" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Sadržaj</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">sakrij</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">Početak</div> </a> </li> <li id="toc-Kinetička_teorija_plinova" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kinetička_teorija_plinova"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Kinetička teorija plinova</span> </div> </a> <button aria-controls="toc-Kinetička_teorija_plinova-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sadržaj cjeline Kinetička teorija plinova</span> </button> <ul id="toc-Kinetička_teorija_plinova-sublist" class="vector-toc-list"> <li id="toc-Tlak_plina" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Tlak_plina"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1</span> <span>Tlak plina</span> </div> </a> <ul id="toc-Tlak_plina-sublist" class="vector-toc-list"> <li id="toc-Atmosferski_tlak" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Atmosferski_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1.1</span> <span>Atmosferski tlak</span> </div> </a> <ul id="toc-Atmosferski_tlak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Parcijalni_tlak" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Parcijalni_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.1.2</span> <span>Parcijalni tlak</span> </div> </a> <ul id="toc-Parcijalni_tlak-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> </ul> </li> <li id="toc-Tlak_kod_tekućina" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tlak_kod_tekućina"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Tlak kod tekućina</span> </div> </a> <button aria-controls="toc-Tlak_kod_tekućina-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Sadržaj cjeline Tlak kod tekućina</span> </button> <ul id="toc-Tlak_kod_tekućina-sublist" class="vector-toc-list"> <li id="toc-Hidrostatski_tlak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hidrostatski_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>Hidrostatski tlak</span> </div> </a> <ul id="toc-Hidrostatski_tlak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Hidraulički_tlak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hidraulički_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>Hidraulički tlak</span> </div> </a> <ul id="toc-Hidraulički_tlak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Hidrodinamički_tlak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Hidrodinamički_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Hidrodinamički tlak</span> </div> </a> <ul id="toc-Hidrodinamički_tlak-sublist" class="vector-toc-list"> <li id="toc-Bernoullijeva_jednadžba" class="vector-toc-list-item vector-toc-level-3"> <a class="vector-toc-link" href="#Bernoullijeva_jednadžba"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3.1</span> <span>Bernoullijeva jednadžba</span> </div> </a> <ul id="toc-Bernoullijeva_jednadžba-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Kohezijski_tlak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Kohezijski_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.4</span> <span>Kohezijski tlak</span> </div> </a> <ul id="toc-Kohezijski_tlak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Krvni_tlak" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Krvni_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.5</span> <span>Krvni tlak</span> </div> </a> <ul id="toc-Krvni_tlak-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Pretlak,_podtlak_i_apsolutni_tlak" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Pretlak,_podtlak_i_apsolutni_tlak"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Pretlak, podtlak i apsolutni tlak</span> </div> </a> <ul id="toc-Pretlak,_podtlak_i_apsolutni_tlak-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Izvori" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Izvori"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Izvori</span> </div> </a> <ul id="toc-Izvori-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Poveznice" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Poveznice"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Poveznice</span> </div> </a> <ul id="toc-Poveznice-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Sadržaj" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Prikaz sadržaja stranice" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Prikaz sadržaja stranice</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Tlak</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Idi na druge jezične varijante članka. Dostupan je na 111 jezika" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-111" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">111 jezika</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/Druk" title="Druk – afrikaans" lang="af" hreflang="af" data-title="Druk" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-als mw-list-item"><a href="https://als.wikipedia.org/wiki/Druck_(Physik)" title="Druck (Physik) – švicarski njemački" lang="gsw" hreflang="gsw" data-title="Druck (Physik)" data-language-autonym="Alemannisch" data-language-local-name="švicarski njemački" class="interlanguage-link-target"><span>Alemannisch</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%B6%D8%BA%D8%B7" title="ضغط – arapski" lang="ar" hreflang="ar" data-title="ضغط" data-language-autonym="العربية" data-language-local-name="arapski" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ary mw-list-item"><a href="https://ary.wikipedia.org/wiki/%D8%B6%D8%BA%D8%B7" title="ضغط – Moroccan Arabic" lang="ary" hreflang="ary" data-title="ضغط" data-language-autonym="الدارجة" data-language-local-name="Moroccan Arabic" class="interlanguage-link-target"><span>الدارجة</span></a></li><li class="interlanguage-link interwiki-ast mw-list-item"><a href="https://ast.wikipedia.org/wiki/Presi%C3%B3n" title="Presión – asturijski" lang="ast" hreflang="ast" data-title="Presión" data-language-autonym="Asturianu" data-language-local-name="asturijski" class="interlanguage-link-target"><span>Asturianu</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/T%C9%99zyiq" title="Təzyiq – azerbajdžanski" lang="az" hreflang="az" data-title="Təzyiq" data-language-autonym="Azərbaycanca" data-language-local-name="azerbajdžanski" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-azb mw-list-item"><a href="https://azb.wikipedia.org/wiki/%D8%A8%D8%A7%D8%B3%D9%82%DB%8C" title="باسقی – South Azerbaijani" lang="azb" hreflang="azb" data-title="باسقی" data-language-autonym="تۆرکجه" data-language-local-name="South Azerbaijani" class="interlanguage-link-target"><span>تۆرکجه</span></a></li><li class="interlanguage-link interwiki-bcl mw-list-item"><a href="https://bcl.wikipedia.org/wiki/Presyon" title="Presyon – Central Bikol" lang="bcl" hreflang="bcl" data-title="Presyon" data-language-autonym="Bikol Central" data-language-local-name="Central Bikol" class="interlanguage-link-target"><span>Bikol Central</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/%D0%A6%D1%96%D1%81%D0%BA" title="Ціск – bjeloruski" lang="be" hreflang="be" data-title="Ціск" data-language-autonym="Беларуская" data-language-local-name="bjeloruski" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/%D0%A6%D1%96%D1%81%D0%BA" title="Ціск – Belarusian (Taraškievica orthography)" lang="be-tarask" hreflang="be-tarask" data-title="Ціск" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="Belarusian (Taraškievica orthography)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bew mw-list-item"><a href="https://bew.wikipedia.org/wiki/Tekenan" title="Tekenan – Betawi" lang="bew" hreflang="bew" data-title="Tekenan" data-language-autonym="Betawi" data-language-local-name="Betawi" class="interlanguage-link-target"><span>Betawi</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/%D0%9D%D0%B0%D0%BB%D1%8F%D0%B3%D0%B0%D0%BD%D0%B5" title="Налягане – bugarski" lang="bg" hreflang="bg" data-title="Налягане" data-language-autonym="Български" data-language-local-name="bugarski" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-blk mw-list-item"><a href="https://blk.wikipedia.org/wiki/%E1%80%90%E1%80%AD%E1%80%80%E1%80%BA%EA%A9%BB%E1%80%94%E1%80%BB%EA%A9%BB%E1%80%A1%E1%80%AC%E1%82%8F" title="တိက်ꩻနျꩻအာႏ – Pa'O" lang="blk" hreflang="blk" data-title="တိက်ꩻနျꩻအာႏ" data-language-autonym="ပအိုဝ်ႏဘာႏသာႏ" data-language-local-name="Pa'O" class="interlanguage-link-target"><span>ပအိုဝ်ႏဘာႏသာႏ</span></a></li><li class="interlanguage-link interwiki-bn mw-list-item"><a href="https://bn.wikipedia.org/wiki/%E0%A6%9A%E0%A6%BE%E0%A6%AA" title="চাপ – bangla" lang="bn" hreflang="bn" data-title="চাপ" data-language-autonym="বাংলা" data-language-local-name="bangla" class="interlanguage-link-target"><span>বাংলা</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/Pritisak" title="Pritisak – bosanski" lang="bs" hreflang="bs" data-title="Pritisak" data-language-autonym="Bosanski" data-language-local-name="bosanski" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Pressi%C3%B3" title="Pressió – katalonski" lang="ca" hreflang="ca" data-title="Pressió" data-language-autonym="Català" data-language-local-name="katalonski" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D9%BE%DB%95%D8%B3%D8%AA%D8%A7%D9%86" title="پەستان – soranski kurdski" lang="ckb" hreflang="ckb" data-title="پەستان" data-language-autonym="کوردی" data-language-local-name="soranski kurdski" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/Tlak" title="Tlak – češki" lang="cs" hreflang="cs" data-title="Tlak" data-language-autonym="Čeština" data-language-local-name="češki" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-cy mw-list-item"><a href="https://cy.wikipedia.org/wiki/Gwasgedd" title="Gwasgedd – velški" lang="cy" hreflang="cy" data-title="Gwasgedd" data-language-autonym="Cymraeg" data-language-local-name="velški" class="interlanguage-link-target"><span>Cymraeg</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/Tryk_(fysik)" title="Tryk (fysik) – danski" lang="da" hreflang="da" data-title="Tryk (fysik)" data-language-autonym="Dansk" data-language-local-name="danski" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/Druck_(Physik)" title="Druck (Physik) – njemački" lang="de" hreflang="de" data-title="Druck (Physik)" data-language-autonym="Deutsch" data-language-local-name="njemački" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/%CE%A0%CE%AF%CE%B5%CF%83%CE%B7" title="Πίεση – grčki" lang="el" hreflang="el" data-title="Πίεση" data-language-autonym="Ελληνικά" data-language-local-name="grčki" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/Pressure" title="Pressure – engleski" lang="en" hreflang="en" data-title="Pressure" data-language-autonym="English" data-language-local-name="engleski" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/Premo" title="Premo – esperanto" lang="eo" hreflang="eo" data-title="Premo" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/Presi%C3%B3n" title="Presión – španjolski" lang="es" hreflang="es" data-title="Presión" data-language-autonym="Español" data-language-local-name="španjolski" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/R%C3%B5hk" title="Rõhk – estonski" lang="et" hreflang="et" data-title="Rõhk" data-language-autonym="Eesti" data-language-local-name="estonski" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/Presio" title="Presio – baskijski" lang="eu" hreflang="eu" data-title="Presio" data-language-autonym="Euskara" data-language-local-name="baskijski" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D9%81%D8%B4%D8%A7%D8%B1" title="فشار – perzijski" lang="fa" hreflang="fa" data-title="فشار" data-language-autonym="فارسی" data-language-local-name="perzijski" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Paine" title="Paine – finski" lang="fi" hreflang="fi" data-title="Paine" data-language-autonym="Suomi" data-language-local-name="finski" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Pression" title="Pression – francuski" lang="fr" hreflang="fr" data-title="Pression" data-language-autonym="Français" data-language-local-name="francuski" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-frr mw-list-item"><a href="https://frr.wikipedia.org/wiki/Druk" title="Druk – sjevernofrizijski" lang="frr" hreflang="frr" data-title="Druk" data-language-autonym="Nordfriisk" data-language-local-name="sjevernofrizijski" class="interlanguage-link-target"><span>Nordfriisk</span></a></li><li class="interlanguage-link interwiki-ga mw-list-item"><a href="https://ga.wikipedia.org/wiki/Br%C3%BA" title="Brú – irski" lang="ga" hreflang="ga" data-title="Brú" data-language-autonym="Gaeilge" data-language-local-name="irski" class="interlanguage-link-target"><span>Gaeilge</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/Presi%C3%B3n" title="Presión – galicijski" lang="gl" hreflang="gl" data-title="Presión" data-language-autonym="Galego" data-language-local-name="galicijski" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9C%D7%97%D7%A5" title="לחץ – hebrejski" lang="he" hreflang="he" data-title="לחץ" data-language-autonym="עברית" data-language-local-name="hebrejski" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%A6%E0%A4%BE%E0%A4%AC" title="दाब – hindski" lang="hi" hreflang="hi" data-title="दाब" data-language-autonym="हिन्दी" data-language-local-name="hindski" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-ht mw-list-item"><a href="https://ht.wikipedia.org/wiki/Presyon" title="Presyon – haićanski kreolski" lang="ht" hreflang="ht" data-title="Presyon" data-language-autonym="Kreyòl ayisyen" data-language-local-name="haićanski kreolski" class="interlanguage-link-target"><span>Kreyòl ayisyen</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/Nyom%C3%A1s" title="Nyomás – mađarski" lang="hu" hreflang="hu" data-title="Nyomás" data-language-autonym="Magyar" data-language-local-name="mađarski" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-hy mw-list-item"><a href="https://hy.wikipedia.org/wiki/%D5%83%D5%B6%D5%B7%D5%B8%D6%82%D5%B4" title="Ճնշում – armenski" lang="hy" hreflang="hy" data-title="Ճնշում" data-language-autonym="Հայերեն" data-language-local-name="armenski" class="interlanguage-link-target"><span>Հայերեն</span></a></li><li class="interlanguage-link interwiki-ia mw-list-item"><a href="https://ia.wikipedia.org/wiki/Pression" title="Pression – interlingua" lang="ia" hreflang="ia" data-title="Pression" data-language-autonym="Interlingua" data-language-local-name="interlingua" class="interlanguage-link-target"><span>Interlingua</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/Tekanan" title="Tekanan – indonezijski" lang="id" hreflang="id" data-title="Tekanan" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonezijski" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-io mw-list-item"><a href="https://io.wikipedia.org/wiki/Preso" title="Preso – ido" lang="io" hreflang="io" data-title="Preso" data-language-autonym="Ido" data-language-local-name="ido" class="interlanguage-link-target"><span>Ido</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/Pressione" title="Pressione – talijanski" lang="it" hreflang="it" data-title="Pressione" data-language-autonym="Italiano" data-language-local-name="talijanski" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/%E5%9C%A7%E5%8A%9B" title="圧力 – japanski" lang="ja" hreflang="ja" data-title="圧力" data-language-autonym="日本語" data-language-local-name="japanski" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/%E1%83%AC%E1%83%9C%E1%83%94%E1%83%95%E1%83%90" title="წნევა – gruzijski" lang="ka" hreflang="ka" data-title="წნევა" data-language-autonym="ქართული" data-language-local-name="gruzijski" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kab mw-list-item"><a href="https://kab.wikipedia.org/wiki/Adad" title="Adad – kabilski" lang="kab" hreflang="kab" data-title="Adad" data-language-autonym="Taqbaylit" data-language-local-name="kabilski" class="interlanguage-link-target"><span>Taqbaylit</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D2%9A%D1%8B%D1%81%D1%8B%D0%BC" title="Қысым – kazaški" lang="kk" hreflang="kk" data-title="Қысым" data-language-autonym="Қазақша" data-language-local-name="kazaški" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-kn mw-list-item"><a href="https://kn.wikipedia.org/wiki/%E0%B2%92%E0%B2%A4%E0%B3%8D%E0%B2%A4%E0%B2%A1" title="ಒತ್ತಡ – karnatački" lang="kn" hreflang="kn" data-title="ಒತ್ತಡ" data-language-autonym="ಕನ್ನಡ" data-language-local-name="karnatački" class="interlanguage-link-target"><span>ಕನ್ನಡ</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EC%95%95%EB%A0%A5" title="압력 – korejski" lang="ko" hreflang="ko" data-title="압력" data-language-autonym="한국어" data-language-local-name="korejski" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ks mw-list-item"><a href="https://ks.wikipedia.org/wiki/%D8%AF%D9%8E%D8%A8%D8%A7%D9%88" title="دَباو – kašmirski" lang="ks" hreflang="ks" data-title="دَباو" data-language-autonym="कॉशुर / کٲشُر" data-language-local-name="kašmirski" class="interlanguage-link-target"><span>कॉशुर / کٲشُر</span></a></li><li class="interlanguage-link interwiki-ky mw-list-item"><a href="https://ky.wikipedia.org/wiki/%D0%91%D0%B0%D1%81%D1%8B%D0%BC_(%D1%84%D0%B8%D0%B7%D0%B8%D0%BA%D0%B0%D0%BB%D1%8B%D0%BA)" title="Басым (физикалык) – kirgiski" lang="ky" hreflang="ky" data-title="Басым (физикалык)" data-language-autonym="Кыргызча" data-language-local-name="kirgiski" class="interlanguage-link-target"><span>Кыргызча</span></a></li><li class="interlanguage-link interwiki-la mw-list-item"><a href="https://la.wikipedia.org/wiki/Pressio" title="Pressio – latinski" lang="la" hreflang="la" data-title="Pressio" data-language-autonym="Latina" data-language-local-name="latinski" class="interlanguage-link-target"><span>Latina</span></a></li><li class="interlanguage-link interwiki-li mw-list-item"><a href="https://li.wikipedia.org/wiki/Dr%C3%B6k" title="Drök – limburški" lang="li" hreflang="li" data-title="Drök" data-language-autonym="Limburgs" data-language-local-name="limburški" class="interlanguage-link-target"><span>Limburgs</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/Sl%C4%97gis" title="Slėgis – litavski" lang="lt" hreflang="lt" data-title="Slėgis" data-language-autonym="Lietuvių" data-language-local-name="litavski" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/Spiediens" title="Spiediens – latvijski" lang="lv" hreflang="lv" data-title="Spiediens" data-language-autonym="Latviešu" data-language-local-name="latvijski" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-mg mw-list-item"><a href="https://mg.wikipedia.org/wiki/Tsindry_(fizika)" title="Tsindry (fizika) – malgaški" lang="mg" hreflang="mg" data-title="Tsindry (fizika)" data-language-autonym="Malagasy" data-language-local-name="malgaški" class="interlanguage-link-target"><span>Malagasy</span></a></li><li class="interlanguage-link interwiki-mk mw-list-item"><a href="https://mk.wikipedia.org/wiki/%D0%9F%D1%80%D0%B8%D1%82%D0%B8%D1%81%D0%BE%D0%BA" title="Притисок – makedonski" lang="mk" hreflang="mk" data-title="Притисок" data-language-autonym="Македонски" data-language-local-name="makedonski" class="interlanguage-link-target"><span>Македонски</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AE%E0%B5%BC%E0%B4%A6%E0%B5%8D%E0%B4%A6%E0%B4%82" title="മർദ്ദം – malajalamski" lang="ml" hreflang="ml" data-title="മർദ്ദം" data-language-autonym="മലയാളം" data-language-local-name="malajalamski" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-mn mw-list-item"><a href="https://mn.wikipedia.org/wiki/%D0%94%D0%B0%D1%80%D0%B0%D0%BB%D1%82" title="Даралт – mongolski" lang="mn" hreflang="mn" data-title="Даралт" data-language-autonym="Монгол" data-language-local-name="mongolski" class="interlanguage-link-target"><span>Монгол</span></a></li><li class="interlanguage-link interwiki-mr mw-list-item"><a href="https://mr.wikipedia.org/wiki/%E0%A4%A6%E0%A4%BE%E0%A4%AC" title="दाब – marathski" lang="mr" hreflang="mr" data-title="दाब" data-language-autonym="मराठी" data-language-local-name="marathski" class="interlanguage-link-target"><span>मराठी</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/Tekanan" title="Tekanan – malajski" lang="ms" hreflang="ms" data-title="Tekanan" data-language-autonym="Bahasa Melayu" data-language-local-name="malajski" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-my mw-list-item"><a href="https://my.wikipedia.org/wiki/%E1%80%96%E1%80%AD%E1%80%A1%E1%80%AC%E1%80%B8" title="ဖိအား – burmanski" lang="my" hreflang="my" data-title="ဖိအား" data-language-autonym="မြန်မာဘာသာ" data-language-local-name="burmanski" class="interlanguage-link-target"><span>မြန်မာဘာသာ</span></a></li><li class="interlanguage-link interwiki-myv mw-list-item"><a href="https://myv.wikipedia.org/wiki/%D0%9B%D0%B5%D0%BF%D1%88%D1%82%D1%8F%D0%BC%D0%BE" title="Лепштямо – mordvinski" lang="myv" hreflang="myv" data-title="Лепштямо" data-language-autonym="Эрзянь" data-language-local-name="mordvinski" class="interlanguage-link-target"><span>Эрзянь</span></a></li><li class="interlanguage-link interwiki-mzn mw-list-item"><a href="https://mzn.wikipedia.org/wiki/%D8%B3%DB%8C%D8%A8" title="سیب – mazanderanski" lang="mzn" hreflang="mzn" data-title="سیب" data-language-autonym="مازِرونی" data-language-local-name="mazanderanski" class="interlanguage-link-target"><span>مازِرونی</span></a></li><li class="interlanguage-link interwiki-nds mw-list-item"><a href="https://nds.wikipedia.org/wiki/Druck_(Physik)" title="Druck (Physik) – donjonjemački" lang="nds" hreflang="nds" data-title="Druck (Physik)" data-language-autonym="Plattdüütsch" data-language-local-name="donjonjemački" class="interlanguage-link-target"><span>Plattdüütsch</span></a></li><li class="interlanguage-link interwiki-ne mw-list-item"><a href="https://ne.wikipedia.org/wiki/%E0%A4%9A%E0%A4%BE%E0%A4%AA" title="चाप – nepalski" lang="ne" hreflang="ne" data-title="चाप" data-language-autonym="नेपाली" data-language-local-name="nepalski" class="interlanguage-link-target"><span>नेपाली</span></a></li><li class="interlanguage-link interwiki-new mw-list-item"><a href="https://new.wikipedia.org/wiki/%E0%A4%9A%E0%A4%BE%E0%A4%AA" title="चाप – newari" lang="new" hreflang="new" data-title="चाप" data-language-autonym="नेपाल भाषा" data-language-local-name="newari" class="interlanguage-link-target"><span>नेपाल भाषा</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Druk_(grootheid)" title="Druk (grootheid) – nizozemski" lang="nl" hreflang="nl" data-title="Druk (grootheid)" data-language-autonym="Nederlands" data-language-local-name="nizozemski" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/Trykk" title="Trykk – norveški nynorsk" lang="nn" hreflang="nn" data-title="Trykk" data-language-autonym="Norsk nynorsk" data-language-local-name="norveški nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-no mw-list-item"><a href="https://no.wikipedia.org/wiki/Trykk" title="Trykk – norveški bokmål" lang="nb" hreflang="nb" data-title="Trykk" data-language-autonym="Norsk bokmål" data-language-local-name="norveški bokmål" class="interlanguage-link-target"><span>Norsk bokmål</span></a></li><li class="interlanguage-link interwiki-oc mw-list-item"><a href="https://oc.wikipedia.org/wiki/Pression" title="Pression – okcitanski" lang="oc" hreflang="oc" data-title="Pression" data-language-autonym="Occitan" data-language-local-name="okcitanski" class="interlanguage-link-target"><span>Occitan</span></a></li><li class="interlanguage-link interwiki-om mw-list-item"><a href="https://om.wikipedia.org/wiki/Dhiibbaa" title="Dhiibbaa – oromski" lang="om" hreflang="om" data-title="Dhiibbaa" data-language-autonym="Oromoo" data-language-local-name="oromski" class="interlanguage-link-target"><span>Oromoo</span></a></li><li class="interlanguage-link interwiki-pap mw-list-item"><a href="https://pap.wikipedia.org/wiki/Preshon" title="Preshon – papiamento" lang="pap" hreflang="pap" data-title="Preshon" data-language-autonym="Papiamentu" data-language-local-name="papiamento" class="interlanguage-link-target"><span>Papiamentu</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Ci%C5%9Bnienie" title="Ciśnienie – poljski" lang="pl" hreflang="pl" data-title="Ciśnienie" data-language-autonym="Polski" data-language-local-name="poljski" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pms mw-list-item"><a href="https://pms.wikipedia.org/wiki/Pression" title="Pression – Piedmontese" lang="pms" hreflang="pms" data-title="Pression" data-language-autonym="Piemontèis" data-language-local-name="Piedmontese" class="interlanguage-link-target"><span>Piemontèis</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/Press%C3%A3o" title="Pressão – portugalski" lang="pt" hreflang="pt" data-title="Pressão" data-language-autonym="Português" data-language-local-name="portugalski" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-qu mw-list-item"><a href="https://qu.wikipedia.org/wiki/%C3%91it%27iy" title="Ñit'iy – kečuanski" lang="qu" hreflang="qu" data-title="Ñit'iy" data-language-autonym="Runa Simi" data-language-local-name="kečuanski" class="interlanguage-link-target"><span>Runa Simi</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/Presiune" title="Presiune – rumunjski" lang="ro" hreflang="ro" data-title="Presiune" data-language-autonym="Română" data-language-local-name="rumunjski" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%94%D0%B0%D0%B2%D0%BB%D0%B5%D0%BD%D0%B8%D0%B5" title="Давление – ruski" lang="ru" hreflang="ru" data-title="Давление" data-language-autonym="Русский" data-language-local-name="ruski" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-scn mw-list-item"><a href="https://scn.wikipedia.org/wiki/Prissioni" title="Prissioni – sicilijski" lang="scn" hreflang="scn" data-title="Prissioni" data-language-autonym="Sicilianu" data-language-local-name="sicilijski" class="interlanguage-link-target"><span>Sicilianu</span></a></li><li class="interlanguage-link interwiki-sco mw-list-item"><a href="https://sco.wikipedia.org/wiki/Pressur" title="Pressur – škotski" lang="sco" hreflang="sco" data-title="Pressur" data-language-autonym="Scots" data-language-local-name="škotski" class="interlanguage-link-target"><span>Scots</span></a></li><li class="interlanguage-link interwiki-sd mw-list-item"><a href="https://sd.wikipedia.org/wiki/%D8%AF%D9%BB%D8%A7%D8%A1%D9%8F_(%D9%81%D8%B2%DA%AA%D8%B3)" title="دٻاءُ (فزڪس) – sindski" lang="sd" hreflang="sd" data-title="دٻاءُ (فزڪس)" data-language-autonym="سنڌي" data-language-local-name="sindski" class="interlanguage-link-target"><span>سنڌي</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/Tlak" title="Tlak – srpsko-hrvatski" lang="sh" hreflang="sh" data-title="Tlak" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="srpsko-hrvatski" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-si mw-list-item"><a href="https://si.wikipedia.org/wiki/%E0%B6%B4%E0%B7%93%E0%B6%A9%E0%B6%B1%E0%B6%BA" title="පීඩනය – sinhaleški" lang="si" hreflang="si" data-title="පීඩනය" data-language-autonym="සිංහල" data-language-local-name="sinhaleški" class="interlanguage-link-target"><span>සිංහල</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/Pressure" title="Pressure – Simple English" lang="en-simple" hreflang="en-simple" data-title="Pressure" data-language-autonym="Simple English" data-language-local-name="Simple English" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Tlak" title="Tlak – slovački" lang="sk" hreflang="sk" data-title="Tlak" data-language-autonym="Slovenčina" data-language-local-name="slovački" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/Tlak" title="Tlak – slovenski" lang="sl" hreflang="sl" data-title="Tlak" data-language-autonym="Slovenščina" data-language-local-name="slovenski" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-sn mw-list-item"><a href="https://sn.wikipedia.org/wiki/Puresha" title="Puresha – shona" lang="sn" hreflang="sn" data-title="Puresha" data-language-autonym="ChiShona" data-language-local-name="shona" class="interlanguage-link-target"><span>ChiShona</span></a></li><li class="interlanguage-link interwiki-so mw-list-item"><a href="https://so.wikipedia.org/wiki/Cadaadis" title="Cadaadis – somalski" lang="so" hreflang="so" data-title="Cadaadis" data-language-autonym="Soomaaliga" data-language-local-name="somalski" class="interlanguage-link-target"><span>Soomaaliga</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/Shtypja" title="Shtypja – albanski" lang="sq" hreflang="sq" data-title="Shtypja" data-language-autonym="Shqip" data-language-local-name="albanski" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/%D0%9F%D1%80%D0%B8%D1%82%D0%B8%D1%81%D0%B0%D0%BA" title="Притисак – srpski" lang="sr" hreflang="sr" data-title="Притисак" data-language-autonym="Српски / srpski" data-language-local-name="srpski" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-su mw-list-item"><a href="https://su.wikipedia.org/wiki/Tekenan" title="Tekenan – sundanski" lang="su" hreflang="su" data-title="Tekenan" data-language-autonym="Sunda" data-language-local-name="sundanski" class="interlanguage-link-target"><span>Sunda</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Tryck" title="Tryck – švedski" lang="sv" hreflang="sv" data-title="Tryck" data-language-autonym="Svenska" data-language-local-name="švedski" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-sw mw-list-item"><a href="https://sw.wikipedia.org/wiki/Shinikizo" title="Shinikizo – svahili" lang="sw" hreflang="sw" data-title="Shinikizo" data-language-autonym="Kiswahili" data-language-local-name="svahili" class="interlanguage-link-target"><span>Kiswahili</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%85%E0%AE%B4%E0%AF%81%E0%AE%A4%E0%AF%8D%E0%AE%A4%E0%AE%AE%E0%AF%8D" title="அழுத்தம் – tamilski" lang="ta" hreflang="ta" data-title="அழுத்தம்" data-language-autonym="தமிழ்" data-language-local-name="tamilski" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AA%E0%B1%80%E0%B0%A1%E0%B0%A8%E0%B0%82" title="పీడనం – teluški" lang="te" hreflang="te" data-title="పీడనం" data-language-autonym="తెలుగు" data-language-local-name="teluški" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B8%84%E0%B8%A7%E0%B8%B2%E0%B8%A1%E0%B8%94%E0%B8%B1%E0%B8%99" title="ความดัน – tajlandski" lang="th" hreflang="th" data-title="ความดัน" data-language-autonym="ไทย" data-language-local-name="tajlandski" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/Presyon" title="Presyon – tagalog" lang="tl" hreflang="tl" data-title="Presyon" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/Bas%C4%B1n%C3%A7" title="Basınç – turski" lang="tr" hreflang="tr" data-title="Basınç" data-language-autonym="Türkçe" data-language-local-name="turski" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-tt mw-list-item"><a href="https://tt.wikipedia.org/wiki/%D0%91%D0%B0%D1%81%D1%8B%D0%BC" title="Басым – tatarski" lang="tt" hreflang="tt" data-title="Басым" data-language-autonym="Татарча / tatarça" data-language-local-name="tatarski" class="interlanguage-link-target"><span>Татарча / tatarça</span></a></li><li class="interlanguage-link interwiki-ug mw-list-item"><a href="https://ug.wikipedia.org/wiki/%D8%A8%DB%90%D8%B3%D9%89%D9%85" title="بېسىم – ujgurski" lang="ug" hreflang="ug" data-title="بېسىم" data-language-autonym="ئۇيغۇرچە / Uyghurche" data-language-local-name="ujgurski" class="interlanguage-link-target"><span>ئۇيغۇرچە / Uyghurche</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/%D0%A2%D0%B8%D1%81%D0%BA" title="Тиск – ukrajinski" lang="uk" hreflang="uk" data-title="Тиск" data-language-autonym="Українська" data-language-local-name="ukrajinski" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-ur mw-list-item"><a href="https://ur.wikipedia.org/wiki/%D8%AF%D8%A8%D8%A7%D8%A4" title="دباؤ – urdski" lang="ur" hreflang="ur" data-title="دباؤ" data-language-autonym="اردو" data-language-local-name="urdski" class="interlanguage-link-target"><span>اردو</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/Bosim" title="Bosim – uzbečki" lang="uz" hreflang="uz" data-title="Bosim" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="uzbečki" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/%C3%81p_su%E1%BA%A5t" title="Áp suất – vijetnamski" lang="vi" hreflang="vi" data-title="Áp suất" data-language-autonym="Tiếng Việt" data-language-local-name="vijetnamski" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-war mw-list-item"><a href="https://war.wikipedia.org/wiki/Presyon" title="Presyon – waray" lang="war" hreflang="war" data-title="Presyon" data-language-autonym="Winaray" data-language-local-name="waray" class="interlanguage-link-target"><span>Winaray</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/%E5%8E%8B%E5%BC%BA" title="压强 – wu kineski" lang="wuu" hreflang="wuu" data-title="压强" data-language-autonym="吴语" data-language-local-name="wu kineski" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-yi mw-list-item"><a href="https://yi.wikipedia.org/wiki/%D7%93%D7%A8%D7%95%D7%A7" title="דרוק – jidiš" lang="yi" hreflang="yi" data-title="דרוק" data-language-autonym="ייִדיש" data-language-local-name="jidiš" class="interlanguage-link-target"><span>ייִדיש</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/%E5%8E%8B%E5%BC%BA" title="压强 – kineski" lang="zh" hreflang="zh" data-title="压强" data-language-autonym="中文" data-language-local-name="kineski" class="interlanguage-link-target"><span>中文</span></a></li><li class="interlanguage-link interwiki-zh-classical mw-list-item"><a href="https://zh-classical.wikipedia.org/wiki/%E5%A3%93%E5%BC%B7" title="壓強 – Literary Chinese" lang="lzh" hreflang="lzh" data-title="壓強" data-language-autonym="文言" data-language-local-name="Literary Chinese" class="interlanguage-link-target"><span>文言</span></a></li><li class="interlanguage-link interwiki-zh-min-nan mw-list-item"><a href="https://zh-min-nan.wikipedia.org/wiki/Ap-le%CC%8Dk" title="Ap-le̍k – min nan kineski" lang="nan" hreflang="nan" data-title="Ap-le̍k" data-language-autonym="閩南語 / Bân-lâm-gú" data-language-local-name="min nan kineski" class="interlanguage-link-target"><span>閩南語 / Bân-lâm-gú</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E5%A3%93%E5%8A%9B" title="壓力 – kantonski" lang="yue" hreflang="yue" data-title="壓力" data-language-autonym="粵語" data-language-local-name="kantonski" class="interlanguage-link-target"><span>粵語</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q39552#sitelinks-wikipedia" title="Poveznice na druge jezike" class="wbc-editpage">Uredi poveznice</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Imenski prostori"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Tlak" title="Pogledaj sadržaj [c]" accesskey="c"><span>Stranica</span></a></li><li id="ca-talk" class="new vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Razgovor:Tlak&action=edit&redlink=1" rel="discussion" class="new" title="Razgovorna stranica (stranica ne postoji) [t]" accesskey="t"><span>Razgovor</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Promijeni jezičnu varijantu" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">hrvatski</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Pogledi"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/Tlak"><span>Čitaj</span></a></li><li id="ca-ve-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Tlak&veaction=edit" title="Uredite ovu stranicu [v]" accesskey="v"><span>Uredi</span></a></li><li id="ca-edit" class="collapsible vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Tlak&action=edit" title="Uredite izvorni kôd ove stranice [e]" accesskey="e"><span>Uredi kôd</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=Tlak&action=history" title="Ranije izmjene na ovoj stranici [h]" accesskey="h"><span>Vidi povijest</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Pomagala"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Pomagala" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Pomagala</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Pomagala</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">sakrij</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="Više mogućnosti" > <div class="vector-menu-heading"> Radnje </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/Tlak"><span>Čitaj</span></a></li><li id="ca-more-ve-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Tlak&veaction=edit" title="Uredite ovu stranicu [v]" accesskey="v"><span>Uredi</span></a></li><li id="ca-more-edit" class="collapsible vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Tlak&action=edit" title="Uredite izvorni kôd ove stranice [e]" accesskey="e"><span>Uredi kôd</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=Tlak&action=history"><span>Vidi povijest</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> Razno </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Posebno:%C5%A0to_vodi_ovamo/Tlak" title="Popis svih stranica koje sadrže poveznice na ovu stranicu [j]" accesskey="j"><span>Što vodi ovamo</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Posebno:Povezane_promjene/Tlak" rel="nofollow" title="Nedavne promjene na stranicama koje su povezane s navedenom stranicom [k]" accesskey="k"><span>Povezane promjene</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedija:Upload" title="Postavi datoteke [u]" accesskey="u"><span>Postavi datoteku</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Posebno:Posebne_stranice" title="Popis svih posebnih stranica [q]" accesskey="q"><span>Posebne stranice</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=Tlak&oldid=6971812" title="Trajna poveznica na ovu verziju stranice"><span>Trajna poveznica</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=Tlak&action=info" title="Više informacija o ovoj stranici"><span>Podatci o stranici</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Posebno:Citiraj&page=Tlak&id=6971812&wpFormIdentifier=titleform" title="Informacije o tome kako citirati ovu stranicu"><span>Citiraj ovu stranicu</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Posebno:Skra%C4%87iva%C4%8D_adresa&url=https%3A%2F%2Fhr.wikipedia.org%2Fwiki%2FTlak"><span>Skraćeni URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Posebno:QrCode&url=https%3A%2F%2Fhr.wikipedia.org%2Fwiki%2FTlak"><span>Preuzmi QR kôd</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Ispis/izvoz </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-create_a_book" class="mw-list-item"><a href="/w/index.php?title=Posebno:Zbirka&bookcmd=book_creator&referer=Tlak"><span>Stvori knjigu</span></a></li><li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Posebno:DownloadAsPdf&page=Tlak&action=show-download-screen"><span>Preuzmi kao PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=Tlak&printable=yes" title="Inačica za ispis ove stranice [p]" accesskey="p"><span>Inačica za ispis</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> Wikimedijini projekti </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="wb-otherproject-link wb-otherproject-commons mw-list-item"><a href="https://commons.wikimedia.org/wiki/Category:Pressure" hreflang="en"><span>Zajednički poslužitelj</span></a></li><li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q39552" title="Poveznica na stavku na projektu Wikipodatci [g]" accesskey="g"><span>Stavka na Wikipodatcima</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Pomagala"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Izgled"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Izgled</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">premjesti</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">sakrij</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Izvor: Wikipedija</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="hr" dir="ltr"><figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Pressure_force_area.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Pressure_force_area.svg/200px-Pressure_force_area.svg.png" decoding="async" width="200" height="200" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Pressure_force_area.svg/300px-Pressure_force_area.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/ff/Pressure_force_area.svg/400px-Pressure_force_area.svg.png 2x" data-file-width="350" data-file-height="350" /></a><figcaption>Tlak je <a href="/wiki/Fizikalna_veli%C4%8Dina" class="mw-redirect" title="Fizikalna veličina">fizikalna veličina</a> koja opisuje djelovanje sile na <a href="/wiki/Povr%C5%A1ina" title="Površina">površinu</a>, određena omjerom sile <i>F</i> (<a href="/wiki/Pritisak" title="Pritisak">pritisak</a>), koja djeluje okomito na površinu <a href="/wiki/Povr%C5%A1ina" title="Površina">ploštine</a> <i>A</i>.</figcaption></figure> <p><b>Tlak</b> je <a href="/wiki/Fizikalna_veli%C4%8Dina" class="mw-redirect" title="Fizikalna veličina">fizikalna veličina</a> (znak <i>p</i>) koja opisuje djelovanje sile na <a href="/wiki/Povr%C5%A1ina" title="Površina">površinu</a> (<a href="/wiki/Pritisak" title="Pritisak">pritisak</a>), određena omjerom sile <i>F</i>, koja djeluje okomito na površinu <a href="/wiki/Povr%C5%A1ina" title="Površina">ploštine</a> <i>A</i>, dakle: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p={F \over A}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>p</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mi>F</mi> <mi>A</mi> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p={F \over A}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/5b857baa36b1cbfc35a54990c7e149826d85d078" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.005ex; margin-left: -0.089ex; width:6.937ex; height:5.343ex;" alt="{\displaystyle p={F \over A}}"></span>.</dd></dl> <p>Mjerna jedinica tlaka je <a href="/wiki/Paskal" title="Paskal">Paskal</a> (znak Pa) ili <a href="/wiki/Njutn" title="Njutn">njutn</a> po <a href="/wiki/%C4%8Cetvorni_metar" title="Četvorni metar">metru kvadratnom</a> (N/m<sup>2</sup>). Osim Paskala može se upotrebljavati i mjerna jedinica tlaka <a href="/wiki/Bar_(jedinica)" title="Bar (jedinica)">bar</a> (1 bar = 10<sup>5</sup> Pa). Stare jedinice tlaka bile su:<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <ul><li><a href="/wiki/Tehni%C4%8Dka_atmosfera" title="Tehnička atmosfera">tehnička atmosfera</a>, znak at (1 at = 98 066,5 Pa);<sup id="cite_ref-NN2-2007_2-0" class="reference"><a href="#cite_note-NN2-2007-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li> <li><a href="/wiki/Standardna_atmosfera" title="Standardna atmosfera">standardna</a>, normalna ili fizikalna atmosfera, znak atm (1 atm = 101 325 Pa);<sup id="cite_ref-NN2-2007_2-1" class="reference"><a href="#cite_note-NN2-2007-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>)</li> <li><a href="/wiki/Milimetar_%C5%BEivina_stupca" title="Milimetar živina stupca">milimetar živina stupca</a> ili milimetar stupca žive, znak mmHg, ili <a href="/wiki/Torr" class="mw-redirect" title="Torr">torr</a> (1 mmHg = 1 torr = 133,322 Pa);<sup id="cite_ref-NN2-2007_2-2" class="reference"><a href="#cite_note-NN2-2007-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></li> <li>milimetar stupca vode, znak mmH<sub>2</sub>O (1 mmH<sub>2</sub>O = 9,806 65 Pa).</li></ul> <table class="wikitable"> <caption><b>Mjerne jedinice za tlak</b> </caption> <tbody><tr> <th>  </th> <th width="15%"><a href="/wiki/Paskal" title="Paskal">paskal</a> </th> <th width="15%"><a href="/wiki/Bar_(jedinica)" title="Bar (jedinica)">bar</a> </th> <th width="15%"><a href="/wiki/Tehni%C4%8Dka_atmosfera" title="Tehnička atmosfera">tehnička atmosfera</a> </th> <th width="15%"><a href="/wiki/Standardna_atmosfera" title="Standardna atmosfera">standardna atmosfera</a> </th> <th width="15%"><a href="/wiki/Torr" class="mw-redirect" title="Torr">torr</a><br />(<a href="/wiki/MmHg" class="mw-redirect" title="MmHg">mmHg</a>) </th> <th width="15%">funta sile po četvornom palcu </th></tr> <tr> <th>1 Pa </th> <td>≡ 1 <a href="/wiki/Njutn" title="Njutn">N</a>/m² </td> <td>= 10<sup>−5</sup> bar </td> <td>≈ 10,197·10<sup>−6</sup> at </td> <td>≈ 9,8692·10<sup>−6</sup> atm </td> <td>≈ 7,5006·10<sup>−3</sup> torr </td> <td>≈ 145,04·10<sup>−6</sup> psi </td></tr> <tr> <th>1 bar </th> <td>= 100 000 Pa </td> <td>≡ 10<sup>6</sup> <a href="/wiki/Din" title="Din">din</a>/cm² </td> <td>≈ 1,0197 at </td> <td>≈ 0,98692 atm </td> <td>≈ 750,06 torr </td> <td>≈ 14,504 psi </td></tr> <tr> <th>1 at </th> <td>= 98 066,5 Pa </td> <td>= 0,980665 bar </td> <td>≡ 1 <a href="/wiki/Kilopond" title="Kilopond">kp</a>/cm² </td> <td>≈ 0,96784 atm </td> <td>≈ 735,56 torr </td> <td>≈ 14,223 psi </td></tr> <tr> <th>1 atm </th> <td>= 101 325 Pa </td> <td>= 1,01325 bar </td> <td>≈ 1,0332 at </td> <td>≡ 101 325 Pa </td> <td>= 760 torr </td> <td>≈ 14,696 psi </td></tr> <tr> <th>1 torr </th> <td>≈ 133,322 Pa </td> <td>≈ 1,3332·10<sup>−3</sup> bar </td> <td>≈ 1,3595·10<sup>−3</sup> at </td> <td>≈ 1,3158·10<sup>−3</sup> atm </td> <td>≡ 1 mmHg </td> <td>≈ 19,337·10<sup>−3</sup> psi </td></tr> <tr> <th>1 psi </th> <td>≈ 6894,76 Pa </td> <td>≈ 68,948·10<sup>−3</sup> bar </td> <td>≈ 70,307·10<sup>−3</sup> at </td> <td>≈ 68,046·10<sup>−3</sup> atm </td> <td>≈ 51,715 torr </td> <td>≡ 1 lbf/in² </td></tr></tbody></table> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Kinetička_teorija_plinova"><span id="Kineti.C4.8Dka_teorija_plinova"></span>Kinetička teorija plinova</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=1" title="Uredi odlomak: Kinetička teorija plinova" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=1" title="Uredi kôd odjeljka Kinetička teorija plinova"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><style data-mw-deduplicate="TemplateStyles:r7016135">.mw-parser-output .hatnote{font-style:italic}.mw-parser-output div.hatnote{padding-left:1.6em;margin-bottom:0.5em}.mw-parser-output .hatnote i{font-style:normal}.mw-parser-output .hatnote+link+.hatnote{margin-top:-0.5em}@media print{body.ns-0 .mw-parser-output .hatnote{display:none!important}}</style><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Kineti%C4%8Dka_teorija_plinova" title="Kinetička teorija plinova">Kinetička teorija plinova</a></div></i></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Translational_motion.gif" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/6/6d/Translational_motion.gif" decoding="async" width="300" height="263" class="mw-file-element" data-file-width="300" data-file-height="263" /></a><figcaption><a href="/wiki/Temperatura" title="Temperatura">Temperatura</a> <a href="/wiki/Idealni_plin" title="Idealni plin">idealnog plina</a> je mjera prosječne <a href="/wiki/Kineti%C4%8Dka_energija" title="Kinetička energija">kinetičke energije</a> <a href="/wiki/Molekula" title="Molekula">molekula</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Manometer_104026.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Manometer_104026.jpg/300px-Manometer_104026.jpg" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Manometer_104026.jpg/450px-Manometer_104026.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d5/Manometer_104026.jpg/600px-Manometer_104026.jpg 2x" data-file-width="1024" data-file-height="768" /></a><figcaption><a href="/wiki/Manometar" title="Manometar">Manometar</a> je <a href="/wiki/Mjerni_instrument" title="Mjerni instrument">mjerni instrument</a> za mjerenje tlaka.</figcaption></figure> <p>Kinetička teorija plinova je tumačenje makroskopskih svojstava <a href="/wiki/Plin" title="Plin">plinova</a> na temelju gibanja njihovih <a href="/wiki/Molekula" title="Molekula">molekula</a>. Osnovne su postavke teorije: </p> <ul><li>molekule su najmanji djelići <a href="/wiki/Kemijska_tvar" title="Kemijska tvar">tvari</a> koji sadrže <a href="/wiki/Kemijsko_svojstvo" title="Kemijsko svojstvo">kemijska svojstva</a> makroskopske tvari;</li> <li>molekule su u stalnom, kaotičnom gibanju (<a href="/wiki/Kineti%C4%8Dka_energija" title="Kinetička energija">kinetička energija</a> molekularnoga sustava predstavlja <a href="/wiki/Toplina" title="Toplina">toplinu</a>);</li> <li>međusobno djelovanje molekula i njihovo djelovanje na stijenke posude u kojoj se plin nalazi može se tumačiti, na bazi <a href="/wiki/Klasi%C4%8Dna_mehanika" title="Klasična mehanika">klasične mehanike</a>, kao <a href="/wiki/Sudar" class="mw-disambig" title="Sudar">sudari</a>;</li> <li>zbog velikoga broja molekula primjenljive su metode <a href="/wiki/Statisti%C4%8Dka_mehanika" title="Statistička mehanika">statističke mehanike</a>. Ako se zanemari međusobno djelovanje molekula, govori se o <a href="/wiki/Idealni_plin" title="Idealni plin">idealnom plinu</a>, za koji se jednostavno izračunavaju temeljne <a href="/wiki/Termodinamika" title="Termodinamika">termodinamičke veličine</a>: tlak, <a href="/wiki/Temperatura" title="Temperatura">temperatura</a> i specifični <a href="/wiki/Toplinski_kapacitet" title="Toplinski kapacitet">toplinski kapacitet</a>.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading3"><h3 id="Tlak_plina">Tlak plina</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=2" title="Uredi odlomak: Tlak plina" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=2" title="Uredi kôd odjeljka Tlak plina"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Jednad%C5%BEba_stanja_idealnog_plina" title="Jednadžba stanja idealnog plina">Jednadžba stanja idealnog plina</a></div></i></div> <p><b>Tlak plina</b> uzrokovan je udarcima molekula plina u određenom vremenu na površinu stijenke posude koja zatvara plin. Taj je tlak to veći što je viša <a href="/wiki/Temperatura" title="Temperatura">temperatura</a> <i>T</i>, a manji <a href="/wiki/Obujam" title="Obujam">obujam</a> ili volumen <i>V</i> određene količine <i>n</i> plina: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p\cdot V=n\cdot R\cdot T\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>p</mi> <mo>⋅</mo> <mi>V</mi> <mo>=</mo> <mi>n</mi> <mo>⋅</mo> <mi>R</mi> <mo>⋅</mo> <mi>T</mi> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p\cdot V=n\cdot R\cdot T\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/1f1bf4fc05a384c55f5605b02a9f7e24a41e29f1" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.089ex; width:16.364ex; height:2.509ex;" alt="{\displaystyle p\cdot V=n\cdot R\cdot T\,}"></span></dd></dl> <p>gdje je: <i>p</i> – apsolutni tlak plina (<a href="/wiki/Pascal" class="mw-disambig" title="Pascal">Pa</a>), <i>V</i> – <a href="/wiki/Obujam" title="Obujam">obujam</a> plina (<a href="/wiki/Kubi%C4%8Dni_metar" title="Kubični metar">m<sup>3</sup></a>), <i>n</i> – broj <a href="/wiki/Mol" class="mw-disambig" title="Mol">molova</a> plina, <i>R</i> – univerzalna <a href="/wiki/Plinska_konstanta" title="Plinska konstanta">plinska konstanta</a> (8,314472 J • mol<sup>−1</sup> • K<sup>−1</sup>), jednaka umnošku <a href="/wiki/Boltzmannova_konstanta" title="Boltzmannova konstanta">Boltzmannove konstante</a> i <a href="/wiki/Avogadrov_broj" title="Avogadrov broj">Avogadrovog broja</a>, <i>T</i> - apsolutna temperatura (<a href="/wiki/Kelvin" title="Kelvin">u Kelvinima</a>). </p> <div class="mw-heading mw-heading4"><h4 id="Atmosferski_tlak">Atmosferski tlak</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=3" title="Uredi odlomak: Atmosferski tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=3" title="Uredi kôd odjeljka Atmosferski tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Atmosferski_tlak" title="Atmosferski tlak">Atmosferski tlak</a></div></i></div> <p><b>Atmosferski tlak</b> uzrokovan je <a href="/wiki/Te%C5%BEina" title="Težina">težinom</a> <a href="/wiki/Zrak" title="Zrak">zraka</a> i određen težinom stupca zraka nad površinom. </p> <div class="mw-heading mw-heading4"><h4 id="Parcijalni_tlak">Parcijalni tlak</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=4" title="Uredi odlomak: Parcijalni tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=4" title="Uredi kôd odjeljka Parcijalni tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Parcijalni_tlak" title="Parcijalni tlak">Parcijalni tlak</a></div></i></div> <p><b>Parcijalni tlak</b> je tlak pojedinih komponenata u smjesi plinova (<a href="/wiki/Daltonov_zakon" title="Daltonov zakon">Daltonov zakon</a>). Tlak se može mjeriti kao apsolutni ili kao relativni, prema tomu uzima li se za nulu <a href="/wiki/Vakuum" title="Vakuum">vakuum</a> ili atmosferski tlak. Relativni tlak koji je manji od atmosferskoga naziva se negativni tlak. </p> <div class="mw-heading mw-heading2"><h2 id="Tlak_kod_tekućina"><span id="Tlak_kod_teku.C4.87ina"></span>Tlak kod tekućina</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=5" title="Uredi odlomak: Tlak kod tekućina" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=5" title="Uredi kôd odjeljka Tlak kod tekućina"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Pressure_distribution_on_an_immersed_cube.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Pressure_distribution_on_an_immersed_cube.png/300px-Pressure_distribution_on_an_immersed_cube.png" decoding="async" width="300" height="200" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Pressure_distribution_on_an_immersed_cube.png/450px-Pressure_distribution_on_an_immersed_cube.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/3c/Pressure_distribution_on_an_immersed_cube.png/600px-Pressure_distribution_on_an_immersed_cube.png 2x" data-file-width="1800" data-file-height="1201" /></a><figcaption><a href="/wiki/Hidrostati%C4%8Dki_tlak" title="Hidrostatički tlak">Hidrostatički tlak</a> se povećava s dubinom. Zbog razlike tlaka na donjem dijelu kocke nastaje <a href="/wiki/Uzgon" title="Uzgon">uzgon</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Hydraulic_Force,_language_neutral.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/7/7d/Hydraulic_Force%2C_language_neutral.png" decoding="async" width="300" height="291" class="mw-file-element" data-file-width="300" data-file-height="291" /></a><figcaption>Način rada <a href="/wiki/Hidrauli%C4%8Dka_pre%C5%A1a" class="mw-redirect" title="Hidraulička preša">hidraulične preše</a>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Cloud_over_A340_wing.JPG" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Cloud_over_A340_wing.JPG/300px-Cloud_over_A340_wing.JPG" decoding="async" width="300" height="225" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Cloud_over_A340_wing.JPG/450px-Cloud_over_A340_wing.JPG 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5a/Cloud_over_A340_wing.JPG/600px-Cloud_over_A340_wing.JPG 2x" data-file-width="2816" data-file-height="2112" /></a><figcaption><a href="/wiki/Kondenzacija" title="Kondenzacija">Kondenzacija</a> vidljiva na gornjoj površini krila <a href="/wiki/Zrakoplov" title="Zrakoplov">zrakoplova</a> <a href="/wiki/Airbus_A340" title="Airbus A340">Airbus A340</a> uzrokovana padom temperature koja nastaje zbog pada tlaka.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:U_cijev.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/hr/thumb/4/42/U_cijev.png/200px-U_cijev.png" decoding="async" width="200" height="445" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/hr/4/42/U_cijev.png 1.5x" data-file-width="269" data-file-height="598" /></a><figcaption>U-cijev mjeri razliku tlakova: <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle H={\frac {P_{a}-P_{o}}{g\cdot \rho }}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>H</mi> <mo>=</mo> <mrow class="MJX-TeXAtom-ORD"> <mfrac> <mrow> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo>−</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>o</mi> </mrow> </msub> </mrow> <mrow> <mi>g</mi> <mo>⋅</mo> <mi>ρ</mi> </mrow> </mfrac> </mrow> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle H={\frac {P_{a}-P_{o}}{g\cdot \rho }}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/379a8b5ba7f809e54d5e0f6e3ae5556231000dca" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -2.338ex; width:13.955ex; height:5.676ex;" alt="{\displaystyle H={\frac {P_{a}-P_{o}}{g\cdot \rho }}}"></span>.</figcaption></figure> <figure class="mw-halign-right" typeof="mw:File/Thumb"><a href="/wiki/Datoteka:Objasnjenje_predtlaka.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/hr/thumb/4/49/Objasnjenje_predtlaka.jpg/400px-Objasnjenje_predtlaka.jpg" decoding="async" width="400" height="320" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/hr/thumb/4/49/Objasnjenje_predtlaka.jpg/600px-Objasnjenje_predtlaka.jpg 1.5x, //upload.wikimedia.org/wikipedia/hr/thumb/4/49/Objasnjenje_predtlaka.jpg/800px-Objasnjenje_predtlaka.jpg 2x" data-file-width="1600" data-file-height="1280" /></a><figcaption>Objašnjenje predtlaka, podtlaka i vakuuma.</figcaption></figure> <p>Kod <a href="/wiki/Teku%C4%87ina" class="mw-redirect" title="Tekućina">tekućina</a>, tlak će se javiti u dva slučaja: </p> <ul><li>prilikom djelovanja <a href="/wiki/Gravitacija" title="Gravitacija">gravitacije</a> ili inercijalnih <a href="/wiki/Sila" title="Sila">sila</a>, kada će sve čestice tekućine dobiti <a href="/wiki/Te%C5%BEina" title="Težina">težinu</a> te će djelovati nekom ukupnom silom u smjeru djelovanja <a href="/wiki/Rezultanta" title="Rezultanta">rezultantne</a> sile polja u kojem se tekućina nalazi. Takvo djelovanje će proizvesti <a href="/wiki/Hidrostatski_tlak" class="mw-redirect" title="Hidrostatski tlak">hidrostatski tlak</a>;</li> <li>prilikom <a href="/wiki/Gibanje" title="Gibanje">gibanja</a> (strujanja) tekućine, kada će na neku prepreku strujanju djelovati sila hidrodinamičkog tlaka, i to na površini u koju tekućina udara (<a href="/wiki/Bernoullijeva_jednad%C5%BEba" title="Bernoullijeva jednadžba">Bernoullijeva jednadžba</a>).</li></ul> <div class="mw-heading mw-heading3"><h3 id="Hidrostatski_tlak">Hidrostatski tlak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=6" title="Uredi odlomak: Hidrostatski tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=6" title="Uredi kôd odjeljka Hidrostatski tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Hidrostatski_tlak" class="mw-redirect" title="Hidrostatski tlak">Hidrostatski tlak</a></div></i></div> <p><b>Hidrostatski tlak</b> je tlak mirnoga <a href="/wiki/Fluid" title="Fluid">fluida</a>, uzrokovan njegovom težinom. Ovisi o <a href="/wiki/Gusto%C4%87a" title="Gustoća">gustoći</a> fluida <i>ρ</i>, dubini na kojoj se mjeri <i>h</i> i <a href="/wiki/Ubrzanje_zemljine_sile_te%C5%BEe" class="mw-redirect" title="Ubrzanje zemljine sile teže">ubrzanju zemljine sile teže</a> <i>g</i>, dakle: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p=\rho \cdot g\cdot h}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>p</mi> <mo>=</mo> <mi>ρ</mi> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <mi>h</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p=\rho \cdot g\cdot h}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/66de3ad1ef8d47ffb862e054b97c6d32442aa61d" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; margin-left: -0.089ex; width:11.372ex; height:2.676ex;" alt="{\displaystyle p=\rho \cdot g\cdot h}"></span></dd></dl> <p>a ne ovisi o smjeru u kojem se mjeri. </p> <div class="mw-heading mw-heading3"><h3 id="Hidraulički_tlak"><span id="Hidrauli.C4.8Dki_tlak"></span>Hidraulički tlak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=7" title="Uredi odlomak: Hidraulički tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=7" title="Uredi kôd odjeljka Hidraulički tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Hidrauli%C4%8Dki_pogon" title="Hidraulički pogon">Hidraulički pogon</a></div></i></div> <p><b>Hidraulički tlak</b> je onaj koji na <a href="/wiki/Fluid" title="Fluid">fluid</a> djeluje izvana (na primjer zbog djelovanja <a href="/wiki/Crpka" class="mw-redirect" title="Crpka">crpke</a> ili pumpe), a u fluidu djeluje jednako u svim smjerovima. </p> <div class="mw-heading mw-heading3"><h3 id="Hidrodinamički_tlak"><span id="Hidrodinami.C4.8Dki_tlak"></span>Hidrodinamički tlak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=8" title="Uredi odlomak: Hidrodinamički tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=8" title="Uredi kôd odjeljka Hidrodinamički tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Hidrodinami%C4%8Dki_tlak" title="Hidrodinamički tlak">Hidrodinamički tlak</a></div></i></div> <p><b>Hidrodinamički tlak</b> pojavljuje se u fluidu koji struji, a sastoji se od statičkog i dinamičkoga dijela; potonji ovisi o brzini strujanja fluida i djeluje u smjeru strujanja. </p> <div class="mw-heading mw-heading4"><h4 id="Bernoullijeva_jednadžba"><span id="Bernoullijeva_jednad.C5.BEba"></span>Bernoullijeva jednadžba</h4><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=9" title="Uredi odlomak: Bernoullijeva jednadžba" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=9" title="Uredi kôd odjeljka Bernoullijeva jednadžba"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Bernoullijeva_jednad%C5%BEba" title="Bernoullijeva jednadžba">Bernoullijeva jednadžba</a></div></i></div> <p><b>Bernoullijeva</b> jednadžba je osnovni zakon gibanja <a href="/wiki/Fluid" title="Fluid">fluida</a>. Proizlazi iz primjene <a href="/wiki/Zakon_o%C4%8Duvanja_energije" title="Zakon očuvanja energije">zakona o očuvanju energije</a> na strujanje fluida. Odatle se dobije da zbroj: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\tfrac {1}{2}}\,\cdot \rho \ \cdot v^{2}\,+\,\rho \ \cdot g\cdot h+\,p\,=\,{\text{konstanta}}\,}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="false" scriptlevel="0"> <mfrac> <mn>1</mn> <mn>2</mn> </mfrac> </mstyle> </mrow> <mspace width="thinmathspace" /> <mo>⋅</mo> <mi>ρ</mi> <mtext> </mtext> <mo>⋅</mo> <msup> <mi>v</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msup> <mspace width="thinmathspace" /> <mo>+</mo> <mspace width="thinmathspace" /> <mi>ρ</mi> <mtext> </mtext> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <mi>h</mi> <mo>+</mo> <mspace width="thinmathspace" /> <mi>p</mi> <mspace width="thinmathspace" /> <mo>=</mo> <mspace width="thinmathspace" /> <mrow class="MJX-TeXAtom-ORD"> <mtext>konstanta</mtext> </mrow> <mspace width="thinmathspace" /> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle {\tfrac {1}{2}}\,\cdot \rho \ \cdot v^{2}\,+\,\rho \ \cdot g\cdot h+\,p\,=\,{\text{konstanta}}\,}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/2d0165910daeb5e005258fd1afd8bfd76033ebef" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -1.171ex; width:39.26ex; height:3.509ex;" alt="{\displaystyle {\tfrac {1}{2}}\,\cdot \rho \ \cdot v^{2}\,+\,\rho \ \cdot g\cdot h+\,p\,=\,{\text{konstanta}}\,}"></span></dd></dl> <p>ima istu vrijednost posvuda u fluidu koji struji vodoravno, gdje je <i>p</i> tlak, <i>ρ</i> <a href="/wiki/Gusto%C4%87a" title="Gustoća">gustoća</a> i <i>v</i> <a href="/wiki/Brzina" title="Brzina">brzina</a> fluida u nekoj točki, a <i>h</i> visina visina <a href="/wiki/Te%C5%BEi%C5%A1te" title="Težište">težišta</a> poprečnog presjeka fluida u odnosu na neku vodoravnu ravninu. Prema tome, ondje gdje je brzina tekućine veća, tlak je manji, ondje gdje je brzina tekućine manja, tlak je veći. Na Bernoullijevoj jednadžbi osnivaju se mnoge <a href="/wiki/In%C5%BEenjerstvo" title="Inženjerstvo">inženjerske</a> primjene, kao na primjer let <a href="/wiki/Zrakoplov" title="Zrakoplov">zrakoplova</a>: zrak struji uz gornju zakrivljenu plohu krila brže nego ispod krila, pa je tlak na donju plohu krila veći nego na gornju, što ima za posljedicu da na krila djeluje ukupna <a href="/wiki/Sila" title="Sila">sila</a> prema gore koja diže zrakoplov.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="Kohezijski_tlak">Kohezijski tlak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=10" title="Uredi odlomak: Kohezijski tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=10" title="Uredi kôd odjeljka Kohezijski tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Kohezija" title="Kohezija">Kohezija</a></div></i></div> <p><b>Kohezijski tlak</b> se pojavljuje samo na slobodnoj površini tekućine, rezultat je djelovanja kohezijskih sila. </p> <div class="mw-heading mw-heading3"><h3 id="Krvni_tlak">Krvni tlak</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=11" title="Uredi odlomak: Krvni tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=11" title="Uredi kôd odjeljka Krvni tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <div style="margin-left:0.3rem"><i><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7016135"><div role="note" class="hatnote navigation-not-searchable"><span typeof="mw:File"><a href="/wiki/Datoteka:Vista-xmag.png" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/18px-Vista-xmag.png" decoding="async" width="18" height="18" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/27px-Vista-xmag.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e5/Vista-xmag.png/36px-Vista-xmag.png 2x" data-file-width="128" data-file-height="128" /></a></span> Podrobniji članak o temi: <a href="/wiki/Krvni_tlak" title="Krvni tlak">Krvni tlak</a></div></i></div> <p><b>Krvni tlak</b> je tlak krvi na stijenke <a href="/wiki/Krvna_%C5%BEila" title="Krvna žila">krvnih žila</a>. Ovisi o nekoliko čimbenika: o ukupnom obujmu krvi što ga izbacuje <a href="/wiki/Srce" title="Srce">srce</a>, o rastegljivosti i elastičnosti krvnih žila, o stegnutosti krvnih žila. Zbog srčanih kontrakcija tlak je najviši na početku krvnog optoka (u <a href="/wiki/Arterija" title="Arterija">arterijama</a>), a najniži na njegovu kraju, u <a href="/wiki/Vena" title="Vena">venama</a>. Kako srce izbacuje krv na mahove, arterijski tlak koleba između sistoličke i dijastoličke vrijednosti. U sistemskom krvnom optoku arterijski je tlak tijekom sistole normalno oko 16 kPa (120 mm Hg), a u dijastoli oko 10,5 kPa (80 mm Hg). Razlika tih dvaju tlakova (5,5 kPa ili 40 mm Hg) naziva se tlak pulsa (bȉla). Srednji arterijski tlak nešto je bliži vrijednosti dijastoličkoga tlaka, jer dijastola traje dulje od sistole. U završnim dijelovima arterijskoga sustava kolebanja tlaka postaju sve slabijima, pa je u <a href="/wiki/Kapilara" title="Kapilara">kapilarama</a> i venama krvni tlak jednolik. Na kraju venskoga sustava, na ušću gornje i donje šuplje vene u desnu pretklijetku, krvni je tlak približno 0 kPa.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Pretlak,_podtlak_i_apsolutni_tlak"><span id="Pretlak.2C_podtlak_i_apsolutni_tlak"></span>Pretlak, podtlak i apsolutni tlak</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=12" title="Uredi odlomak: Pretlak, podtlak i apsolutni tlak" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=12" title="Uredi kôd odjeljka Pretlak, podtlak i apsolutni tlak"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Da izmjerimo tlak plina koji se nalazi u nekoj posudi, može se mjeriti pomoću cijevi u obliku slova U koja je napunjena bilo kojom tekućinom, na primjer <a href="/wiki/%C5%BDiva" title="Živa">živom</a>. Ako je tlak plina <i>P<sub>o</sub></i> u posudi manji od atmosferskog tlaka <i>P<sub>a</sub></i>, živa će u lijevom kraku cijevi stajati više, a u desnom niže. Da bi bila ravnoteža u presjeku <i>A-A</i>, moraju tlakovi s lijeve i desne strane toga presjeka biti jednaki. S lijeve strane toga presjeka djeluje tlak <i>P<sub>o</sub></i> i težina stupca tekućine <i>h<sub>1</sub></i>. Stoga je s lijeve strane toga presjeka tlak: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p_{1}=P_{o}+\rho \cdot g\cdot h_{1}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>o</mi> </mrow> </msub> <mo>+</mo> <mi>ρ</mi> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <msub> <mi>h</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p_{1}=P_{o}+\rho \cdot g\cdot h_{1}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/95ba2734ecc5d120e030797478cbc6e74c0abd13" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; margin-left: -0.089ex; width:18.843ex; height:2.676ex;" alt="{\displaystyle p_{1}=P_{o}+\rho \cdot g\cdot h_{1}}"></span></dd></dl> <p>Tlak s desne strane presjeka <i>A-A</i> jednak je zbroju <a href="/wiki/Atmosferski_tlak" title="Atmosferski tlak">atmosferskog tlaka</a> <i>P<sub>a</sub></i> i težina stupca tekućine <i>h<sub>2</sub></i>, to jest: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p_{2}=P_{a}+\rho \cdot g\cdot h_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>p</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo>+</mo> <mi>ρ</mi> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <msub> <mi>h</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p_{2}=P_{a}+\rho \cdot g\cdot h_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/3b81cab2d5b193ca7d4832d423b1382fe489b099" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; margin-left: -0.089ex; width:18.915ex; height:2.676ex;" alt="{\displaystyle p_{2}=P_{a}+\rho \cdot g\cdot h_{2}}"></span></dd></dl> <p>pri čemu je <i>ρ</i> - gustoća <a href="/wiki/Teku%C4%87ine" title="Tekućine">tekućine</a>, a <i>g</i> - <a href="/wiki/Ubrzanje_zemljine_sile_te%C5%BEe" class="mw-redirect" title="Ubrzanje zemljine sile teže">ubrzanje zemljine sile teže</a>. Kako vrijedi <i>p<sub>1</sub> = p<sub>2</sub></i>, to je: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle P_{o}+\rho \cdot g\cdot h_{1}=P_{a}+\rho \cdot g\cdot h_{2}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>o</mi> </mrow> </msub> <mo>+</mo> <mi>ρ</mi> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <msub> <mi>h</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>1</mn> </mrow> </msub> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo>+</mo> <mi>ρ</mi> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <msub> <mi>h</mi> <mrow class="MJX-TeXAtom-ORD"> <mn>2</mn> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle P_{o}+\rho \cdot g\cdot h_{1}=P_{a}+\rho \cdot g\cdot h_{2}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/816e3b227c0776da199b3708815ceb2a2b3da247" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:30.034ex; height:2.676ex;" alt="{\displaystyle P_{o}+\rho \cdot g\cdot h_{1}=P_{a}+\rho \cdot g\cdot h_{2}}"></span></dd></dl> <p>Kako je očito da je <i>h<sub>1</sub> - h<sub>2</sub> = H</i>, dobivamo: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \rho \cdot g\cdot H=P_{a}-P_{o}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ρ</mi> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <mi>H</mi> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo>−</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>o</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho \cdot g\cdot H=P_{a}-P_{o}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/dfd9e40b0fd8ec54ba4dbd956d77081dd9dce5d9" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:18.795ex; height:2.676ex;" alt="{\displaystyle \rho \cdot g\cdot H=P_{a}-P_{o}}"></span></dd></dl> <p>U ovom slučaju težina stupca tekućine <i>H</i> mjeri razliku između atmosferskog tlaka i tlaka u posudi. Tu razliku nazivamo <b>podtlak</b> ili <b>vakuum</b>. Podtlak je iznos za koliko je tlak u nekoj posudi manji od atmosferskog tlaka. </p><p>Kada bi tlak u posudi <i>P<sub>o</sub></i> bio veći od atmosferskog tlaka, onda bi sličnim postupkom dobili da vrijedi: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle \rho \cdot g\cdot H=P_{o}-P_{a}}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>ρ</mi> <mo>⋅</mo> <mi>g</mi> <mo>⋅</mo> <mi>H</mi> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>o</mi> </mrow> </msub> <mo>−</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle \rho \cdot g\cdot H=P_{o}-P_{a}}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/c18bc803bbfb4bcdf1dd55a6e244f5c5049fb154" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:18.795ex; height:2.676ex;" alt="{\displaystyle \rho \cdot g\cdot H=P_{o}-P_{a}}"></span></dd></dl> <p>Ovu razliku nazivamo pretlak. <b>Pretlak</b> je dakle iznos za koliko je tlak u nekoj posudi veći od atmosferskog tlaka. </p><p><b>Apsolutni tlak</b> <i>p</i> jednak je zbroju atmosferskog tlaka <i>P<sub>a</sub></i> i pretlaka: </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p=P_{a}+pretlak}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>p</mi> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo>+</mo> <mi>p</mi> <mi>r</mi> <mi>e</mi> <mi>t</mi> <mi>l</mi> <mi>a</mi> <mi>k</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p=P_{a}+pretlak}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/8d299be0141da4ce062c531e3d928b9a9cf28624" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.089ex; width:17.067ex; height:2.509ex;" alt="{\displaystyle p=P_{a}+pretlak}"></span></dd></dl> <p>ili, apsolutni tlak <i>p</i> jednak je razlici atmosferskog tlaka <i>P<sub>a</sub></i> i podtlaka:<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p> <dl><dd><span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle p=P_{a}-podtlak}"> <semantics> <mrow class="MJX-TeXAtom-ORD"> <mstyle displaystyle="true" scriptlevel="0"> <mi>p</mi> <mo>=</mo> <msub> <mi>P</mi> <mrow class="MJX-TeXAtom-ORD"> <mi>a</mi> </mrow> </msub> <mo>−</mo> <mi>p</mi> <mi>o</mi> <mi>d</mi> <mi>t</mi> <mi>l</mi> <mi>a</mi> <mi>k</mi> </mstyle> </mrow> <annotation encoding="application/x-tex">{\displaystyle p=P_{a}-podtlak}</annotation> </semantics> </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/ac4ab2611db4e8649fe6486645e05f1eefa08a14" class="mwe-math-fallback-image-inline mw-invert skin-invert" aria-hidden="true" style="vertical-align: -0.671ex; margin-left: -0.089ex; width:17.279ex; height:2.509ex;" alt="{\displaystyle p=P_{a}-podtlak}"></span></dd></dl> <div class="mw-heading mw-heading2"><h2 id="Izvori">Izvori</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=13" title="Uredi odlomak: Izvori" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=13" title="Uredi kôd odjeljka Izvori"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r6541845">.mw-parser-output .reflist{font-size:90%;margin-bottom:0.5em;list-style-type:decimal}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r7012897">.mw-parser-output cite.citation{font-style:inherit}.mw-parser-output .citation q{quotes:"»""«"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .citation .cs1-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .citation .cs1-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration{color:#555}.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration span{border-bottom:1px dotted;cursor:help}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center}.mw-parser-output code.cs1-code{color:inherit;background:inherit;border:inherit;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;font-size:100%}.mw-parser-output .cs1-visible-error{font-size:100%}.mw-parser-output .cs1-maint{display:none;color:#33aa33;margin-left:0.3em}.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-format{font-size:95%}.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-right{padding-right:0.2em}</style><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.enciklopedija.hr/Natuknica.aspx?ID=61540">tlak</a>. <i>Hrvatska enciklopedija</i>. Leksikografski zavod Miroslav Krleža. 2015.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hrvatska+enciklopedija&rft.atitle=tlak&rft.date=2015&rft_id=http%3A%2F%2Fwww.enciklopedija.hr%2FNatuknica.aspx%3FID%3D61540&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ATlak" class="Z3988"></span></span> </li> <li id="cite_note-NN2-2007-2"><span class="mw-cite-backlink">↑ <a href="#cite_ref-NN2-2007_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-NN2-2007_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-NN2-2007_2-2"><sup><i><b>c</b></i></sup></a></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://narodne-novine.nn.hr/clanci/sluzbeni/2007_01_2_162.html">Pravilnik o mjernim jedinicama</a>, NN 2/2007</span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.enciklopedija.hr/Natuknica.aspx?ID=31495">kinetička teorija plinova</a>. <i>Hrvatska enciklopedija</i>. Leksikografski zavod Miroslav Krleža. 2015.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hrvatska+enciklopedija&rft.atitle=kineti%C4%8Dka+teorija+plinova&rft.date=2015&rft_id=http%3A%2F%2Fwww.enciklopedija.hr%2FNatuknica.aspx%3FID%3D31495&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ATlak" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.enciklopedija.hr/natuknica.aspx?ID=7186">Bernoullijeva jednadžba</a>. <i>Hrvatska enciklopedija</i>. Leksikografski zavod Miroslav Krleža. 2015.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hrvatska+enciklopedija&rft.atitle=Bernoullijeva+jednad%C5%BEba&rft.date=2015&rft_id=http%3A%2F%2Fwww.enciklopedija.hr%2Fnatuknica.aspx%3FID%3D7186&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ATlak" class="Z3988"></span></span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><a href="#cite_ref-5">↑</a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r7012897"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.enciklopedija.hr/natuknica.aspx?ID=34316">krvni tlak</a>. <i>Hrvatska enciklopedija</i>. Leksikografski zavod Miroslav Krleža. 2015.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Hrvatska+enciklopedija&rft.atitle=krvni+tlak&rft.date=2015&rft_id=http%3A%2F%2Fwww.enciklopedija.hr%2Fnatuknica.aspx%3FID%3D34316&rfr_id=info%3Asid%2Fhr.wikipedia.org%3ATlak" class="Z3988"></span></span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><a href="#cite_ref-6">↑</a></span> <span class="reference-text"> Velimir Kruz: "Tehnička fizika za tehničke škole", "Školska knjiga" Zagreb, 1969.</span> </li> </ol></div></div> <div style="padding:3px"><div style="display:table-cell; vertical-align:middle; text-align:center; width:2em; font-family:serif; font-size:180%; padding-right:3px; letter-spacing:-0.1em; background:#f0e0b0">HE</div><div style="display:table-cell; vertical-align:middle; font-size:82%; padding-left:3px">Dio sadržaja ove stranice preuzet je iz mrežnog izdanja <a href="/wiki/Hrvatska_enciklopedija_(LZMK)" title="Hrvatska enciklopedija (LZMK)">Hrvatske enciklopedije</a> i nije slobodan za daljnju upotrebu pod uvjetima Wikipedijine licencije o sadržaju. Uvjete upotrebe uz <a href="/wiki/Wikipedija:Dopu%C5%A1tenja_za_kori%C5%A1tenje_sadr%C5%BEaja/Ustanove#Leksikografski_zavod_"Miroslav_Krleža"" title="Wikipedija:Dopuštenja za korištenje sadržaja/Ustanove">dano nam pojašnjenje</a> pogledajte na <a rel="nofollow" class="external text" href="https://www.enciklopedija.hr/Upute/">stranici Leksikografskog zavoda</a></div></div> <p><br /> </p> <div class="mw-heading mw-heading2"><h2 id="Poveznice">Poveznice</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Tlak&veaction=edit&section=14" title="Uredi odlomak: Poveznice" class="mw-editsection-visualeditor"><span>uredi</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Tlak&action=edit&section=14" title="Uredi kôd odjeljka Poveznice"><span>uredi kôd</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Naprezanje" title="Naprezanje">Naprezanje</a></li> <li><a href="/wiki/Uzgon" title="Uzgon">Uzgon</a></li></ul>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Dobavljeno iz "<a dir="ltr" href="https://hr.wikipedia.org/w/index.php?title=Tlak&oldid=6971812">https://hr.wikipedia.org/w/index.php?title=Tlak&oldid=6971812</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Posebno:Kategorije" title="Posebno:Kategorije">Kategorija</a>: <ul><li><a href="/wiki/Kategorija:Sadr%C5%BEaj_preuzet_iz_Hrvatske_enciklopedije" title="Kategorija:Sadržaj preuzet iz Hrvatske enciklopedije">Sadržaj preuzet iz Hrvatske enciklopedije</a></li><li><a href="/wiki/Kategorija:Fizikalne_veli%C4%8Dine" title="Kategorija:Fizikalne veličine">Fizikalne veličine</a></li><li><a href="/wiki/Kategorija:Klasi%C4%8Dna_mehanika" title="Kategorija:Klasična mehanika">Klasična mehanika</a></li><li><a href="/wiki/Kategorija:Mehanika_fluida" title="Kategorija:Mehanika fluida">Mehanika fluida</a></li><li><a href="/wiki/Kategorija:Hidraulika" title="Kategorija:Hidraulika">Hidraulika</a></li><li><a href="/wiki/Kategorija:Termodinamika" title="Kategorija:Termodinamika">Termodinamika</a></li><li><a href="/wiki/Kategorija:Statisti%C4%8Dka_fizika" title="Kategorija:Statistička fizika">Statistička fizika</a></li><li><a href="/wiki/Kategorija:Pneumatika" title="Kategorija:Pneumatika">Pneumatika</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> Ova stranica posljednji je put uređivana 18. lipnja 2024. u 07:05.</li> <li id="footer-info-copyright">Tekst je dostupan pod licencijom <a rel="nofollow" class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.hr">Creative Commons: Imenuj autora/Dijeli pod istim uvjetima</a>; mogu se primjenjivati i dodatni uvjeti. 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