40. In which case must a reaction be spontaneous at all temperatures?
(A) ΔH is positive, ΔS is positive.
(B) ΔH = 0, ΔS is negative.
(C) ΔS = 0, ΔH is positive
(D) ΔH is negative, ΔS is positive.

相關試題

相關試卷