将1 mol CO和1 mol H2O充入某固定容积的容器中,在某条件下达到平衡:C

将1 mol CO和1 mol H2O充入某固定容积的容器中,在某条件下达到平衡:CO(g)+H2O(g)CO2(g)+H2(g),此时有的CO转化为CO2。计算平衡状态下混合气体中CO2的体积分数。

答案

33.3%


解析:

由于该反应是气体分子数目不变的反应,所以最后混合气体共有2 mol,而生成的CO2 mol,所以平衡时CO2的体积分数为: mol××100%=33.3%。

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