Second Law of Thermodynamics

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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 & Francis Group.(Pg.85)
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