阿摩線上測驗
29. Consider the following changes: H2O(s) → H2O(l) △ H1 H2O(l) → H2O(g) △ H2 H2O(g) → H2O(s) △ H3 Using Hess’ Law, the sum all of △ H1 + △ H2 + △ H3 is
(A) > 0
(B) = 0
(C) < 0
(D) sometimes > 0 and sometimes < 0
(A) > 0
(B) = 0
(C) < 0
(D) sometimes > 0 and sometimes < 0
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統計： A(11), B(193), C(13), D(6), E(0) #923012
統計： A(11), B(193), C(13), D(6), E(0) #923012
