阿摩線上測驗
25. The standard molar free energies of formation (△G) of NO2(g) and N2O4(g) at25 °C are 52 and 97 kJ/mol, respectively. Consider the equilibrium at 25 °С:
2 NO2(g)⇌ N2O4(g)
Which of the following statements is correct?
(A) The reaction is endothermic at 25 °C.
(B) △S° for this reaction is positive at 25 °C.
(C) The equilibrium constant (K) is less than 1 at 25 °C.
(D) Decreasing the temperature increases the ratio [N2O4]/[NO2].
(E) The reaction is spontaneous at all temperatures.
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統計： A(1), B(0), C(2), D(1), E(0) #3847801
統計： A(1), B(0), C(2), D(1), E(0) #3847801
