ChemistryNEET 2019Entropy and Gibbs energy, spontaneity

Thermodynamics

In which case is the change in entropy negative?

A.Evaporation of water
B.Expansion of a gas at constant temperature
C.Sublimation of a solid to a gas
D. $2H (g) \to H_{2} (g)$ ✓

You have the answer. The worked solution — and why the other three were written — is part of a paid pack.

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From Chemistry › Thermodynamics › Entropy and Gibbs energy, spontaneity — lectures, notes and every past question on it.

Last revised 7 Sept 2026. Found a mistake? Tell us — corrections are the fastest thing we act on.

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