JEE MAIN - Chemistry (2019 - 10th January Evening Slot - No. 17)
The process with negative entropy change is :
Dissociation of CaSO4 (s) to CaO(s) and SO3(g)
Dissolution of iodine in water
Synthesis of ammonia from N2 and H2
Sublimation of dry ice
Explanation
N2(g) + 3H2(g) $$\rightleftharpoons$$ 2NH3(g); $$\Delta $$ng < 0
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