A) Dissociation of\[CaS{{O}_{4}}\], (s) to CaO(s) and \[S{{O}_{3}}\](g)
B) Dissolution of iodine in water
C) Synthesis of ammonia from N2 and H2
D) Sublimation of dry ice
Correct Answer: C
Solution :
\[{{N}_{2}}_{(g)}+{{H}_{2}}_{(g)}\rightleftharpoons 2N{{H}_{3(g)}},\Delta \,ng<0\] entropy decreases in above reaction.
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