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window.loswp.willEdgeCache = false; window.loswp.work = {"work":{"id":53330541,"created_at":"2021-09-25T11:42:41.761-07:00","from_world_paper_id":173971268,"updated_at":"2024-11-24T08:07:47.694-08:00","_data":{"grobid_abstract":"Entropy is a basic physical quantity that led to various, and sometimes apparently con icting interpretations. It has been successively assimilated to di erent concepts such as disorder and information. In this paper we're going to revisit these conceptions, and establish the three following results: Entropy measures lack of information; it also measures information. These two conceptions are complementary. Entropy measures freedom, and this allows a coherent interpretation of entropy formulas and of experimental facts. To associate entropy and disorder implies de ning order as absence of freedom. Disorder or agitation is shown to be more appropriately linked with temperature.","publication_date":"2005,2,14","publication_name":"Entropy","grobid_abstract_attachment_id":"70223995"},"document_type":"paper","pre_hit_view_count_baseline":null,"quality":"high","language":"en","title":"The meanings of entropy","broadcastable":true,"draft":null,"has_indexable_attachment":true,"indexable":true}}["work"]; window.loswp.workCoauthors = [109415171]; window.loswp.locale = "en"; window.loswp.countryCode = "SG"; window.loswp.cwvAbTestBucket = ""; window.loswp.designVariant = "ds_vanilla"; window.loswp.fullPageMobileSutdModalVariant = "full_page_mobile_sutd_modal"; window.loswp.useOptimizedScribd4genScript = false; window.loswp.appleClientId = 'edu.academia.applesignon';</script><script defer="" src="https://accounts.google.com/gsi/client"></script><div class="ds-loswp-container"><div class="ds-work-card--grid-container"><div class="ds-work-card--container js-loswp-work-card"><div class="ds-work-card--cover"><div class="ds-work-cover--wrapper"><div class="ds-work-cover--container"><button class="ds-work-cover--clickable js-swp-download-button" data-signup-modal="{"location":"swp-splash-paper-cover","attachmentId":70223995,"attachmentType":"pdf"}"><img alt="First page of “The meanings of entropy”" class="ds-work-cover--cover-thumbnail" src="https://0.academia-photos.com/attachment_thumbnails/70223995/mini_magick20210925-18846-cgzile.png?1632595478" /><img alt="PDF Icon" class="ds-work-cover--file-icon" src="//a.academia-assets.com/assets/single_work_splash/adobe.icon-574afd46eb6b03a77a153a647fb47e30546f9215c0ee6a25df597a779717f9ef.svg" /><div class="ds-work-cover--hover-container"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span><p>Download Free PDF</p></div><div class="ds-work-cover--ribbon-container">Download Free PDF</div><div class="ds-work-cover--ribbon-triangle"></div></button></div></div></div><div class="ds-work-card--work-information"><h1 class="ds-work-card--work-title">The meanings of entropy</h1><div class="ds-work-card--work-authors ds-work-card--detail"><a class="ds-work-card--author js-wsj-grid-card-author ds2-5-body-md ds2-5-body-link" data-author-id="109415171" href="https://independent.academia.edu/jeanbernardbrissaud"><img alt="Profile image of jean-bernard brissaud" class="ds-work-card--author-avatar" src="//a.academia-assets.com/images/s65_no_pic.png" />jean-bernard brissaud</a></div><div class="ds-work-card--detail"><p class="ds-work-card--detail ds2-5-body-sm">2005, Entropy</p><div class="ds-work-card--work-metadata"><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">visibility</span><p class="ds2-5-body-sm" id="work-metadata-view-count">…</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">description</span><p class="ds2-5-body-sm">29 pages</p></div><div class="ds-work-card--work-metadata__stat"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">link</span><p class="ds2-5-body-sm">1 file</p></div></div><script>(async () => { const workId = 53330541; 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It used to be associated with heat harnessed by a thermal machine to perform work during the Industrial Revolution. However, there was an unprecedented scientific revolution in the 20th century due to one of its most essential innovations, i.e., the information theory, which also encompasses the concept of entropy. Therefore, the following question is naturally raised: “what is the difference, if any, between concepts of entropy in each field of knowledge?” There are misconceptions, as there have been multiple attempts to conciliate the entropy of thermodynamics with that of information theory. Entropy is most commonly defined as “disorder”, although it is not a good analogy since “order” is a subjective human concept, and “disorder” cannot always be obtained from entropy. Therefore, this paper presents a historical background on the evolution of the term “entropy”, and provides mathematical evidence and logical arguments regard...</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Entropy: From Thermodynamics to Information Processing","attachmentId":115951217,"attachmentType":"pdf","work_url":"https://www.academia.edu/120959526/Entropy_From_Thermodynamics_to_Information_Processing","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/120959526/Entropy_From_Thermodynamics_to_Information_Processing"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="1" data-entity-id="6147414" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/6147414/Entropy_a_guide_for_the_perplexed">Entropy: a guide for the perplexed</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="9327077" href="https://lse.academia.edu/CharlotteWerndl">Charlotte Werndl</a></div><p class="ds-related-work--metadata ds2-5-body-xs">C. Beisbart and S. Hartmann (eds), Probabilities in Physics. Oxford University Press, 115-142., 2011</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Entropy: a guide for the perplexed","attachmentId":33040992,"attachmentType":"pdf","work_url":"https://www.academia.edu/6147414/Entropy_a_guide_for_the_perplexed","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/6147414/Entropy_a_guide_for_the_perplexed"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="2" data-entity-id="33244630" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/33244630/The_Elusive_Nature_of_Entropy_and_Its_Physical_Meaning">The Elusive Nature of Entropy and Its Physical Meaning</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="64888473" href="https://independent.academia.edu/JosePuche4">Jose Puche</a></div><p class="ds-related-work--abstract ds2-5-body-sm">Entropy is the most used and often abused concept in science, but also in philosophy and society. Further confusions are produced by some attempts to generalize entropy with similar but not the same concepts in other disciplines. The physical meaning of phenomenological, thermodynamic entropy is reasoned and elaborated by generalizing Clausius definition with inclusion of generated heat, since it is irrelevant if entropy is changed due to reversible heat transfer or irreversible heat generation. Irreversible, caloric heat transfer is introduced as complementing reversible heat transfer. It is also reasoned and thus proven why entropy cannot be destroyed but is always generated (and thus overall increased) locally and globally, at every space and time scales, without any exception. It is concluded that entropy is a thermal displacement (dynamic thermal-volume) of thermal energy due to absolute temperature as a thermal potential (dQ = TdS), and thus associated with thermal heat and absolute temperature, i.e., distribution of thermal energy within thermal micro-particles in space. Entropy is an integral measure of (random) thermal energy redistribution (due to heat transfer and/or irreversible heat generation) within a material system structure in space, per absolute temperature level: dS = dQ Sys /T = mC Sys dT/T, thus logarithmic integral function, with J/K unit. It may be also expressed as a measure of " thermal disorder " , being related to logarithm of number of all thermal, dynamic microstates W (their position and momenta), S = k B lnW, or to the sum of their logarithmic probabilities S = −k B ∑p i lnp i , that correspond to, or are consistent with the given thermodynamic macro-state. The number of thermal microstates W, is correlated with macro-properties temperature T and volume V for ideal gases. A system form and/or functional order or disorder are not (thermal) energy order/disorder and the former is not related to Thermodynamic entropy. Expanding entropy to any type of disorder or information is a source of many misconceptions. Granted, there are certain benefits of simplified statistical descriptions to better comprehend the randomness of thermal motion OPEN ACCESS Entropy 2014, 16 954 and related physical quantities, but the limitations should be stated so the generalizations are not overstretched and the real physics overlooked, or worse discredited.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"The Elusive Nature of Entropy and Its Physical Meaning","attachmentId":53317188,"attachmentType":"pdf","work_url":"https://www.academia.edu/33244630/The_Elusive_Nature_of_Entropy_and_Its_Physical_Meaning","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/33244630/The_Elusive_Nature_of_Entropy_and_Its_Physical_Meaning"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="3" data-entity-id="10806577" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/10806577/_A_few_exciting_words_information_and_entropy_revisited">"A few exciting words": information and entropy revisited</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="6912" href="https://city.academia.edu/DavidBawden">David Bawden</a></div><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"\"A few exciting words\": information and entropy revisited","attachmentId":36642523,"attachmentType":"pdf","work_url":"https://www.academia.edu/10806577/_A_few_exciting_words_information_and_entropy_revisited","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/10806577/_A_few_exciting_words_information_and_entropy_revisited"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="4" data-entity-id="30997424" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/30997424/Entropy_Its_Language_and_Interpretation">Entropy, Its Language, and Interpretation</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="59067893" href="https://independent.academia.edu/LeffHarvey">Harvey Leff</a></div><p class="ds-related-work--abstract ds2-5-body-sm">The language of entropy is examined for consistency with its mathematics and physics, and for its efficacy as a guide to what entropy means. Do common de-scriptors such as disorder, missing information, and multiplicity help or hinder under-standing? Can the language of entropy be helpful in cases where entropy is not well defined? We argue in favor of the descriptor spreading, which entails space, time, and energy in a fundamental way. This includes spreading of energy spatially during processes and temporal spreading over accessible microstates states in thermody-namic equilibrium. Various examples illustrate the value of the spreading metaphor. To provide further support for this metaphor's utility, it is shown how a set of reasonable spreading properties can be used to derive the entropy function. 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We shall show that entropy may be nothing more than a mathematical contrivance, one that is illogically used to explain too many phenomena. In so doing, we shall question many traditional thermodynamic conceptualizations, as well as provide a unique understanding as to how Boltzmann’s constant relates to a system’s ability to do work.</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Entropy: An ill-conceived mathematical contrivance?","attachmentId":40845391,"attachmentType":"pdf","work_url":"https://www.academia.edu/19788130/Entropy_An_ill_conceived_mathematical_contrivance","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/19788130/Entropy_An_ill_conceived_mathematical_contrivance"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="7" data-entity-id="65191106" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/65191106/The_Statistical_Interpretation_of_Entropy_An_Activity">The Statistical Interpretation of Entropy: An Activity</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="51034504" href="https://independent.academia.edu/ToddTimberlake">Todd Timberlake</a></div><p class="ds-related-work--metadata ds2-5-body-xs">The Physics Teacher, 2010</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"The Statistical Interpretation of Entropy: An Activity","attachmentId":76897040,"attachmentType":"pdf","work_url":"https://www.academia.edu/65191106/The_Statistical_Interpretation_of_Entropy_An_Activity","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/65191106/The_Statistical_Interpretation_of_Entropy_An_Activity"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="8" data-entity-id="99654506" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/99654506/ENTROPY_DISORDER_ORDER_AND_INFORMATION">ENTROPY, DISORDER, ORDER AND INFORMATION</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="213465827" href="https://independent.academia.edu/JoanFonollosa">Joan Fonollosa</a></div><p class="ds-related-work--abstract ds2-5-body-sm">It is usually considered that Entropy and Disorder are two almost identical concepts and in fact these words are often used as synonyms and the same goes for their opposites: Order and Information. In this article we reflect on the nature and meaning of these concepts and the relationship between them, while applying the ESKU model and we will see that the relationship between entropy and disorder turns out to be of a subjective nature, that is to say that it depends on the model that the observer has on the system. We will also see that the word "information" as used in the Theory of Communications is confusing, which is why it is proposed to replace it with "content".</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"ENTROPY, DISORDER, ORDER AND INFORMATION","attachmentId":100686317,"attachmentType":"pdf","work_url":"https://www.academia.edu/99654506/ENTROPY_DISORDER_ORDER_AND_INFORMATION","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/99654506/ENTROPY_DISORDER_ORDER_AND_INFORMATION"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div><div class="ds-related-work--container js-wsj-grid-card" data-collection-position="9" data-entity-id="2425178" data-sort-order="default"><a class="ds-related-work--title js-wsj-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/2425178/Entropy_A_concept_that_is_not_a_physical_quantity">Entropy：A concept that is not a physical quantity</a><div class="ds-related-work--metadata"><a class="js-wsj-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="3148895" href="https://independent.academia.edu/shufengzhang">shufeng zhang</a></div><p class="ds-related-work--metadata ds2-5-body-xs">Physics Essays, 2012</p><div class="ds-related-work--ctas"><button class="ds2-5-text-link ds2-5-text-link--inline js-swp-download-button" data-signup-modal="{"location":"wsj-grid-card-download-pdf-modal","work_title":"Entropy：A concept that is not a physical quantity","attachmentId":54827963,"attachmentType":"pdf","work_url":"https://www.academia.edu/2425178/Entropy_A_concept_that_is_not_a_physical_quantity","alternativeTracking":true}"><span class="material-symbols-outlined" style="font-size: 18px" translate="no">download</span><span class="ds2-5-text-link__content">Download free PDF</span></button><a class="ds2-5-text-link ds2-5-text-link--inline js-wsj-grid-card-view-pdf" href="https://www.academia.edu/2425178/Entropy_A_concept_that_is_not_a_physical_quantity"><span class="ds2-5-text-link__content">View PDF</span><span class="material-symbols-outlined" style="font-size: 18px" translate="no">chevron_right</span></a></div></div></div></div><div class="ds-sticky-ctas--wrapper js-loswp-sticky-ctas hidden"><div class="ds-sticky-ctas--grid-container"><div class="ds-sticky-ctas--container"><button class="ds2-5-button js-swp-download-button" data-signup-modal="{"location":"continue-reading-button--sticky-ctas","attachmentId":70223995,"attachmentType":"pdf","workUrl":null}">See full PDF</button><button class="ds2-5-button ds2-5-button--secondary js-swp-download-button" data-signup-modal="{"location":"download-pdf-button--sticky-ctas","attachmentId":70223995,"attachmentType":"pdf","workUrl":null}"><span class="material-symbols-outlined" style="font-size: 20px" translate="no">download</span>Download PDF</button></div></div></div><div class="ds-below-fold--grid-container"><div class="ds-work--container js-loswp-embedded-document"><div class="attachment_preview" data-attachment="Attachment_70223995" style="display: none"><div class="js-scribd-document-container"><div class="scribd--document-loading js-scribd-document-loader" style="display: block;"><img alt="Loading..." src="//a.academia-assets.com/images/loaders/paper-load.gif" /><p>Loading Preview</p></div></div><div style="text-align: center;"><div class="scribd--no-preview-alert js-preview-unavailable"><p>Sorry, preview is currently unavailable. You can download the paper by clicking the button above.</p></div></div></div></div><div class="ds-sidebar--container js-work-sidebar"><div class="ds-related-content--container"><h2 class="ds-related-content--heading">Related papers</h2><div class="ds-related-work--container js-related-work-sidebar-card" data-collection-position="0" data-entity-id="2424850" data-sort-order="default"><a class="ds-related-work--title js-related-work-grid-card-title ds2-5-body-md ds2-5-body-link" href="https://www.academia.edu/2424850/Entropy_A_concept_that_is_not_a_physical_quantity_PHYSICS_ESSAYS_Volume_25_Issue_2_June_2012_P172_176_">Entropy：A concept that is not a physical quantity ................................(PHYSICS ESSAYS, Volume 25 Issue 2, June 2012, P172-176)</a><div class="ds-related-work--metadata"><a class="js-related-work-grid-card-author ds2-5-body-sm ds2-5-body-link" data-author-id="3148895" href="https://independent.academia.edu/shufengzhang">shufeng zhang</a></div><div 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