![](https://static.youtibao.com/asksite/comm/h5/images/m_q_title.png)
1000K时,反应C(s)+2H2(g)==CH4(g)的△rGmΘ=19 290J/mol。现有与碳反应的气体,其中含有CH4(g)10%,H2
1000K时,反应C(s)+2H2(g)==CH4(g)的△rGmΘ=19 290J/mol。现有与碳反应的气体,其中含有CH4(g)10%,H2(g)80%,N2(g)10%(体积%)。试问: (1)T=1000K,P=100kPa时,甲烷能否形成? (2)在(1)的条件下,压力需增加到多少,上述合成甲烷的反应才可能进行?
![](https://static.youtibao.com/asksite/comm/h5/images/m_q_a.png)
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(1)△G=△rGmΘ+RTlnQp=19290+8.314×1000×ln0.156=3843.4J△G>0甲烷不能形成。(2)若合成甲烷的反应能进行,则须KpΘ>Qp△rGmΘ=一RnnKpΘ19290=一8.314×1000×lnKpΘKpΘ=0.09825P>159.03kPa
![](https://static.youtibao.com/asksite/comm/h5/images/solist_ts.png)