The entropy change ΔS° at 298 K for the reaction NH₄Cl(s) →NH₃(g) + HCl(g) is negative.

Name: The entropy change ΔS° at 298 K for the reaction NH 4 Cl(s) →NH 3 (g) + HCl(g) is negative.
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Question

Quizplus · Accepted Answer

The entropy change ΔS° at 298 K for the given reaction is positive. The reaction involves the conversion of a solid and a gas into two gases, which increases the disorder or randomness of the system. Therefore, the entropy change ΔS° is positive.

The Entropy Change ΔS° at 298 K for the Reaction