试题与答案

某恒温恒容的容器中,建立如下平衡:2NO2(g) N2O4(g),在相同条件下,

题型:选择题

题目:

某恒温恒容的容器中,建立如下平衡:2NO2(g) N2O4(g),在相同条件下,若分别向容器中通入一定量的NO2气体或N2O4气体,重新达到平衡后,容器内N2O4的体积分数比原平衡时 [ ]

A.都增大

B.都减小

C.前者增大后者减小

D.前者减小后者增大

答案:

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