For which of the following reactions will the entropy of a system decrease? A) 2 NH₃(g)→ N₂(g)+ 3 H₂(g) B) 2 C(s)+ O₂(g)→ 2 CO(g) C) CaCO₃(s)→ CaO(s)+ CO₂(g) D) 2 NO₂(g)→ N₂O₄(g) E) NaOH(s)→ Na⁺(aq)+ OH^-(aq)

Question

Quizplus · Accepted Answer

The reaction D involves the combination of two gas molecules into one, reducing the number of gas particles and thus decreasing the entropy of the system.

For Which of the Following Reactions Will the Entropy of a System