由N2和H2组成的混合气体,其平均相对分子质量为7.2,取此气体0.5mol

由N2和H2组成的混合气体,其平均相对分子质量为7.2,取此气体0.5mol,充入密容器中,使之反应并在一定条件下达到平衡,已知反应达到平衡后容器内压强是相同条件下反应前压强的0.76倍,求:

(1)反应前混合气体中N2和H2的体积比。

(2)平衡混合气体中NH3和H2的物质的量。

(3)达到平衡时N2的转化率。

答案

(1)1:4  (2)H2:0.22mol  NH3:0.12mol  (3)60%

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