27. The following reaction takes place at 120 °C: H2O(l) → H2O(g) , ΔH = 44.0 kJ/mol, ΔS = 0.119 kJ/mol·K. Which of the following must be true?
(A) The reaction is not spontaneous.
(B) The reaction is spontaneous.
(C) ΔG < 0
(D) Two of these.
(E) None of the above.

答案：登入後查看
統計： A(3), B(2), C(1), D(33), E(1) #2020331

詳解 (共 1 筆)

#6450116

∆G=∆H-T∆S=44x10^3-(273+120)x0.119x10^3

=-2.8x10^3 kJ/mol
反應自發且∆G<0
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