14. Which is not the valid statement?
(A) 2SO3(g) → 2SO2(g) + O2(g)
> 0, the reaction is spontaneous at high temperatures and is entropy driven.
(B) 2C(s) + 2H2(g) → C2H4(g)
> 0, the reaction will be spontaneous at low temperatures and is entropy driven.
(C) 2NO(g) + O2(g) → 2NO2(g)
< 0, the reaction will be spontaneous at low temperatures and is enthalpy driven.
(D) N2H4(l) + O2(g) → N2(g) + 2H2O(g)
< 0, the reaction will be spontaneous at all temperatures.
(E) Water slowly evaporates at 25°C. This is a spontaneous reaction that is entropy driven.
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統計: 尚無統計資料
統計: 尚無統計資料