Second Law of Thermodynamics: Difference between revisions

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Second law of [[Thermodynamics|thermodynamics]] states that the degree of disorder always increases spontaneously in an isolated system or in the universe as a whole, it can never decrease.  
Second law of [[Thermodynamics|thermodynamics]] states that the degree of disorder always increases spontaneously in an isolated system or in the universe as a whole, it can never decrease.  


The measure of the disorder in a system&nbsp;is called the [[Entropy|entropy]] of a system.<ref name="null">ALBERTS, B. et al. (2014) Essential Cell Biology (4th ed), New York: Garland Science, Taylor &amp;amp; Francis Group.(Pg.85)</ref>  
The measure of the disorder in a system&nbsp;is called the [[Entropy|entropy]] of a system.<ref name="null">ALBERTS, B. et al. (2014) Essential Cell Biology (4th ed), New York: Garland Science, Taylor &amp;amp;amp; Francis Group.(Pg.85)</ref>  


If a system (for example, an organism) is not isolated, its entropy can decrease, provided that the entropy of its surroundings increases.  
If a system (for example, an organism) is not isolated, its entropy can decrease, provided that the entropy of its surroundings increases.<br>  
 
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=== Reference  ===
=== Reference  ===


<references />
<references />

Latest revision as of 21:57, 27 November 2014

Second law of thermodynamics states that the degree of disorder always increases spontaneously in an isolated system or in the universe as a whole, it can never decrease.

The measure of the disorder in a system is called the entropy of a system.[1]

If a system (for example, an organism) is not isolated, its entropy can decrease, provided that the entropy of its surroundings increases.

Reference

  1. ALBERTS, B. et al. (2014) Essential Cell Biology (4th ed), New York: Garland Science, Taylor &amp;amp; Francis Group.(Pg.85)