單項選擇題單原子分子A,B間發(fā)生反應(yīng),若忽略振動基態(tài)能量之差,則實驗活化能Ea,臨界能Ec,勢壘Eb間存在關(guān)系為:()

A.Ea=Ec+1/2RT=Eb+1/2RT
B.Ea=Eb+1/2RT=Ec+RT
C.Ea=Ec-1/2RT=Eb-1/2RT
D.Ea=Eb+RT=Ec+RT


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