Identify the reaction/process in which the entropy decreases

1. $\mathrm{H}_2 \mathrm{O}$ (l) $\longrightarrow \mathrm{H}_2 \mathrm{O}$ (s)
2. $\mathrm{H}_2 \mathrm{O}$ (l) $\longrightarrow \mathrm{H}_2 \mathrm{O}$ (g)
3. $\mathrm{H}_2 \mathrm{O}(\mathrm{g}) \longrightarrow 2 \mathrm{H}(\mathrm{g})$
4. Crystal $(100 \mathrm{~K}) \longrightarrow$ Crystal $(200 \mathrm{~K})$

Solution

Asked in: AP EAMCET 2022 (06 Jul Shift 1)

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