How does entropy change in the following scenarios: (i) a phase change from solid to liquid; (ii) a solid dissolves in a solvent?

1 Answer
Dec 14, 2015


Entropy increases in both instances.


The phase change from a condensed to a gaseous phase represents a clear, and readily appreciated increase in entropy. Likewise, the dissolution of a solid in a solvent (sugar in water) gives a greater statistical probability of disorder (i.e. entropy!).