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题型:单选题 题类:常考题 难易度:普通
浙江省金华市武义第三中学2019-2020学年高二上学期化学期中考试试卷
反应Ⅰ:3N2H4(g)=N2(g)+4NH3(g) ΔH1=-32.9 kJ·mol-1
反应Ⅱ:N2H4(g)+H2(g)=2NH3(g) ΔH2=-41.8 kJ·mol-1
下列说法中错误的是( )
已知:①S(单斜,s)+O2(g)═SO2(g)△H1=﹣297.16kJ•mol﹣1
②S(正交,s)+O2(g)═SO2(g)△H2=﹣296.83kJ•mol﹣1
③S(单斜,s)═S(正交,s)△H3
下列说法正确的是( )
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
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