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[[File:4335281098 237ce959bd.jpg|thumbnail|right|350px|The [[First Law of Thermodynamics|first law of thermodynamics]] and the [[second law of thermodynamics]] point to a divine origin of the universe.<ref>[https://web.archive.org/web/20160318060455/https://www.creationencounter.com/space/lawsofscience.php Scientific laws and the Origin of the Universe]</ref><ref>[https://www.apologeticspress.org/apcontent.aspx?category=12&article=310 So Long, Eternal Universe; Hello Beginning, Hello End!], 2001 (Apologetics Press)</ref><ref>[https://creation.com/if-god-created-the-universe-then-who-created-god If God created the universe, then who created God?] by [[Jonathan Sarfati]]</ref>]]
'''Entropy''' is a quantitative measure of the "disorder" in a system. It forms the basis of the [[second law of thermodynamics]], that '''entropy''' tends to increase. In other words, the tendency of everything to trend toward greater disorder, in the absence of intelligent intervention.
'''Entropy''' is a quantitative measure of the "disorder" in a system. It forms the basis of the [[second law of thermodynamics]], that '''entropy''' tends to increase. In other words, the tendency of everything to trend toward greater disorder, in the absence of intelligent intervention.
The [[second law of thermodynamics]] states that entropy tends not to decrease over time within an [[isolated system]], defining a isolated system as one in which neither matter nor energy may enter or leave.<ref>As first postulated by Lazare Carnot in 1803, entropy is the thermodynamic property which trends toward equilibrium.</ref>
The [[second law of thermodynamics]] states that entropy tends not to decrease over time within an [[isolated system]], defining an isolated system as one in which neither matter nor energy may enter or leave.<ref>As first postulated by Lazare Carnot in 1803, entropy is the thermodynamic property which trends toward equilibrium.</ref>
Entropy is undeniable and yet creates perhaps insurmountable difficulties for many modern theories of physics. For example, it renders time asymmetric, resulting in an [[arrow of time]] that is impossible to reconcile with the [[theory of relativity]]. Increasing entropy renders the [[theory of evolution]] implausible, because that theory claims that order is increasing. [[Liberal denial]] is thus common in ignoring the significance of the increase in disorder.
Entropy is undeniable and yet creates perhaps insurmountable difficulties for many modern theories of physics. For example, it renders time asymmetric, resulting in an [[arrow of time]] that is impossible to reconcile with the [[theory of relativity]]. Increasing entropy renders the [[theory of evolution]] implausible, because that theory claims that order is increasing. [[Liberal denial]] is thus common in ignoring the significance of the increase in disorder.
The entropy of a system only depends on the state the system is currently in. The change in entropy therefore only depends on the initial and final states of that system, and not the path taken by the system to reach that final state.
==Definitions==
==Definitions==
where <math>i</math> and <math>f</math> represent the initial and final states of the system.
where <math>i</math> and <math>f</math> represent the initial and final states of the system.
====Example of Thermodynamic Entropy====
====Example of Thermodynamic Entropy====
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Intuitively, the macro-state with the highest [[entropy]] (or "disorder") is the third state as it corresponds the macro-state which has the greatest number of micro-states. In the same way that when you throw four coins, you expect to get two heads and two tails, it is '''not''' impossible to get four heads. It is only less likely.
Intuitively, the macro-state with the highest entropy (or "disorder") is the third state as it corresponds the macro-state which has the greatest number of micro-states. In the same way that when you throw four coins, you expect to get two heads and two tails, it is '''not''' impossible to get four heads. It is only less likely.
===Statistical mechanics definition 2 (Gibbs Entropy)===
===Statistical mechanics definition 2 (Gibbs Entropy)===
==See also==
==See also==
* [[history of entropy|History of the development of entropy]]
*[[history of entropy|History of the development of entropy]]
*[[Thermodynamics]]
*[[Thermodynamics]]
*[[Second law of thermodynamics]]
*[[Second law of thermodynamics]]
*[[Genetic entropy]]
==References==
==References==
<references/>
<references/>
[[Category:Entropy]]
[[Category:Physics]]
[[Category:Physics]]
[[Category:Thermodynamics]]
[[Category:Thermodynamics]]
[[Category:Second law of thermodynamics]]
[[Category:Second Law of Thermodynamics]]