某恒温恒容的容器中,建立如下平衡:2A(g)B(g),在相同条件下

某恒温恒容的容器中,建立如下平衡:2AgBg),在相同条件下,若分别再向容器中通入一定量的A气体或B气体,重新达到平衡后,容器内A的体积分数比原平衡时

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

B

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