Question

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Answer 1

D. H₂O (g) → H₂O (l)

Step-by-step explanation:

Entropy is a measure of "disorder". Gases have more entropy than liquids, which have more entropy than solids.

a) The number of moles of gas increases from 2 to 3, so entropy increases.

b) The number of moles of gas increases from 1 to 2, so entropy increases.

c) The solid becomes a gas, so entropy increases.

d) The gas becomes a liquid, so entropy decreases.