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题型:填空题 题类:常考题 难易度:普通
2016-2017学年河北省邯郸市馆陶一中高二上学期期中化学试卷
2CO(g)+O2(g)=2CO2(g)△H2=﹣566.0kJ/mol,
C(s)+0.5O2(g)=CO(g)△H3=akJ/mol,则a=.
①CH4(g)+ O2(g)⇌CO(g)+2H2(g)△H=﹣36kJ/mol
②CH4(g)+H2O(g)⇌CO(g)+3H2(g)△H=+206kJ/mol
③CH4(g)+CO2(g)⇌2CO(g)+2H2(g)△H=+247kJ/mol副反应
④CH4(g)+2O2(g)⇌CO2(g)+2H2O (g)△H=﹣889.6kJ/mol
C(s)+O2(g)═CO2(g)△H=﹣393.5kJ•mol﹣1
则2Fe(s)+ O2(g)═Fe2O3(s)的△H是( )
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