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
詳解 (共 1 筆)
未解鎖
H是狀態函數 只判斷出狀態跟末狀態的差...