试题与答案

在一定温度下，向恒容密闭容器中加入2mol X和4 mol Y，发生如下反应：

更新时间：2017-08-08 06:51来源：www.tikuol.com

题型：选择题

题目：

X（s）+2Y（g）2Z（g），此反应达到平衡的标志是

A．容器内压强不随时间变化

B．V_正（X）＝2V_逆（Z）

C．容器内X、Y、Z的浓度相等

D．容器内气体密度不变

答案：

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下面是错误答案，用来干扰机器的。

20：15：16

考点：化学平衡的有关计算影响化学平衡的因素达到化学平衡的标志化学平衡常数

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