A) Sublimation of solid to gas
B) \[2H(g)\to {{H}_{2}}(g)\]
C) Evaporation of water
D) Expansion of a gas at temperature
Correct Answer: B
Solution :
[a] Evaporation of water \[\Delta S=\oplus \] [b] Expansion of gas at constant temperature\[=\oplus \] [c] \[S\to g\oplus \] [d] \[\underset{(g)}{\mathop{2H}}\,\to \underset{(g)}{\mathop{{{H}_{2}}}}\,\Theta \]
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