Question

The process with negative entropy change is ______.

Options

• Dissociation of CaSO₄(s) to CaO(s) and SO₃(g)

• Sublimation of dry ice

• Dissolution of iodine in water

• Synthesis of ammonia from N₂ and H₂

Answer 1

The process with negative entropy change is Synthesis of ammonia from N₂ and H₂.

Explanation:

The number of moles decreases during the synthesis of ammonia from N₂ and H₂, implying that the change in entropy is negative.