試題詳解

20. Which of the following reactions would have a positive △S?
(A) Pb(NO₃)₂ (aq) + 2KI (aq) → Pbl₂ (s) + 2KNO₃(aq)
(B)2H₂O(g)→2H₂(g)+O₂(g)
(C) H₂O(g)→H₂O(s)
(D) NO (g)+O₂(g)→NO₂(g)
(E) Ag⁺(aq) +CI^-(aq) →AgCI(s)