试题与答案

在一定条件下的定容密闭容器中,当物质的下列物理量不再变化时,不能表明反应:A(s

题型:选择题

题目:

在一定条件下的定容密闭容器中,当物质的下列物理量不再变化时,不能表明反应:A(s)+2B(g)C(g)+D(g)已达平衡的是(   )

A.混合气体的压强

B.混合气体的密度

C.B的物质的量浓度

D.混合气体的平均相对分子质量

答案:

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