10. The standard free energy of formation 6167c0f384caf.jpg are 30.426 kJ/mol for trans-1,2-dichloroethene and 22.112 kJ/mol for cis-1,2-dichloroethane at 27℃. The molar ratio of trans and cis isomers at equilibrium at 27 ℃ is
(A) 2:3,
(B) 3:2,
(C) 28:1,
(D) 1:28,
(E) 10:3.

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統計： A(1), B(0), C(1), D(1), E(0) #2789560