During which of the following processes, does entropygdecrease?
(A) Freezing of water to ice at $0^{\circ} \mathrm{C}$
(B) Freezing of water to ice at $-10^{\circ} \mathrm{C}$
(C) $\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_{3}(\mathrm{~g})$
(D) Adsorption of $\mathrm{CO}(\mathrm{g})$ and lead surface
(E) Dissolution of $\mathrm{NaCl}$ in water
Correct Option: 1
(A) Water $\stackrel{0^{\circ} \mathrm{C}}{\longrightarrow}$ ice; $\Delta \mathrm{S}=-$ ve
(B) Water $\stackrel{-10^{\circ} \mathrm{C}}{\longrightarrow}$ ice; $\Delta \mathrm{S}=-\mathrm{ve}$
(C) $\mathrm{N}_{2}(\mathrm{~g})+3 \mathrm{H}_{2}(\mathrm{~g}) \rightarrow 2 \mathrm{NH}_{3}(\mathrm{~g}) ; \Delta \mathrm{S}=-\mathrm{ve}$
(D) Adsorption; $\Delta \mathrm{S}=-\mathrm{ve}$
(E) $\mathrm{NaCl}(\mathrm{s}) \rightarrow \mathrm{Na}^{+}(\mathrm{aq})+\mathrm{Cl}^{-}(\mathrm{aq}) ; \Delta \mathrm{S}=+\mathrm{ve}$
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