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Entropy

Entropy is a thermodynamic state variable that quantifies the probabilistic distribution of accessible microstates in a system. The term and the concept are used in diverse fields, from classical thermodynamics (where it was first recognized), to the microscopic description of nature in statistical physics, and the principles of information theory. It…

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Common symbols
S
In SI base units
kg⋅m2⋅s−2⋅K−1
SI unit
joules per kelvin (J⋅K−1)

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Overview

History

Etymology

Definitions and descriptions

Second law of thermodynamics

Applications

Entropy change formulas for simple processes

Approaches to understanding entropy

Interdisciplinary applications

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Map overview Semantic statistics

Entropy

Nodes214
Edges213
Triples255
Avg. degree1.99
Density0.009346
Components1

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Entropy

Top relations

related to External links · 35
Entropy → A-level, Academy, Adam Shulman, Advanced Thermodynamics, Beretta, Brady Haran, Carnot, Chemistry, Clausius, EntropyProof, EntropyThermodynamic Entropy Definition ClarificationMoriarty, Fundamentals, Hour-long, IntuitionMore, January, Kinetics, Merrifield, Michael, MIT, MIT OCW
related to Carnot cycle · 21
Entropy → According, But, Carnot, Carnot's, Clapeyron, Clausius, In, It, Joule, Kelvin, Originally, Rudolf Clausius's, Sigma, Since, The, This, Through, Thus, To, W-
related to Entropy and adiabatic accessibility · 13
Entropy → An, Beretta, Constantin Carathéodory, Defining, Giles, Gyftopoulos, Hatsopoulos, In, Keenan, Lieb, This, Yngvason, Zanchini
related to Philosophy and theoretical physics · 11
Entropy → As, Claude Lévi-Strauss, Dalton, Drew, Examples, Friedrich Nietzsche, Hence, Isabelle Stengers, Philipp Mainländer, Shannon Mussett, Since
related to Classical thermodynamics · 10
Entropy → Carnot, Clausius, Following, Heat, Nevertheless, Rudolf Clausius, The, This, Thus, While Clausius
related to Cosmology · 10
Entropy → Assuming, Hawking, However, If, It, Jacob Bekenstein, Roger Penrose, Stephen Hawking, The, This
is a · 9
Entropy → extensive property, function of state makes it useful, logarithmic measure for the system with a number of states, measure of the amount of missing information before reception, measure of the number of possible microscopic states, measure of the number of ways a system can be arranged, non-conserved state function that is of great importance in the sciences of physics and chemistry, state function, thermodynamic state variable that quantifies the probabilistic distribution of accessible microstates in a system
related to Etymology · 9
Entropy → Clausius, Entropie, Greek, He, In, This, Verwandlungsinhalt, Werkinhalt, Wärme
related to The fundamental thermodynamic relation · 8
Entropy → If, Important, In, Maxwell, S-p, Since, The, This
related to Energy dispersal · 7
Entropy → Ambiguities, As, Peter Atkins, Physical, Physical Chemistry, Similar, The

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Important terminology

system heat temperature thermodynamics thermodynamic energy textstyle state work change law mathsf displaystyle second information constant one statistical equilibrium states

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
EntropyCommon symbolsS1.00infobox
EntropyIn SI base unitskg⋅m2⋅s−2⋅K−11.00infobox
EntropySI unitjoules per kelvin (J⋅K−1)1.00infobox
Entropyis athermodynamic state variable that quantifies the probabilistic distribution of accessible microstates in a system0.90text
Entropyis afunction of state makes it useful0.90text
Entropyis astate function0.90text
Entropyis ameasure of the number of ways a system can be arranged0.90text
Entropyis alogarithmic measure for the system with a number of states0.90text
Entropyis anon-conserved state function that is of great importance in the sciences of physics and chemistry0.90text
Entropyis aextensive property0.90text
Entropyis ameasure of the number of possible microscopic states0.90text
Entropyis ameasure of the amount of missing information before reception0.90text

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