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题型:单选题 题类:常考题 难易度:普通
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组卷次数:106次 +选题
i.H2SO4(l)=SO3(g)+H2O(g)△H=+177kJ/mol
ii.SO3(g)分解.
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
① 2O2(g)+N2(g)=N2O4(l) ΔH1
② N2(g)+2H2(g)=N2H4(l) ΔH2
③ O2(g)+2H2(g)=2H2O(g) ΔH3
④ 2 N2H4(l)+N2O4(l)=3N2(g)+4H2O(g) ΔH4=﹣1048.9 kJ·mol-1
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