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Chemistry LibreTexts

6: Fundamental 5 - Entropy

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    • 6.1: Entropy
      Entropy (S) is a state function that can be related to the number of microstates for a system (the number of ways the system can be arranged) and to the ratio of reversible heat to kelvin temperature. It may be interpreted as a measure of the dispersal or distribution of matter and/or energy in a system, and it is often described as representing the “disorder” of the system. For a given substance, \(S_{solid} < S_{liquid} < S_{gas}\) in a given physical state at a given temperature.

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