單項選擇題

已知反應:2NO(g)+Br(g)=2NOBr(g)的反應歷程是
(1)NO(g)+Br2(g)=NOBr2(g)快
(2)NOBr2(g)+NO(g)=2NOBr(g)慢
則反應的速率方程應為:()

A.V=k[NO]
B.V=k[NOBr2][NO]
C.V=k[NO]2[Br2]
D.V=k[NO][Br2]


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