试题 试卷
题型:单选题 题类:常考题 难易度:普通
吉林省长春外国语学校2019-2020学年高二上学期化学第一次月考试卷
CO:2CO(g)+O2(g)═2CO2(g);△H=﹣566.0kJ/mol.
丙烷:C3H8(g)+5O2(g)═3CO2(g)+4H2O(l);△H=﹣2221.5kJ/mol.
正丁烷:C4H10(g)+6.5O2(g)═4CO2(g)+5H2O(l);△H=﹣2878.0kJ/mol.
异丁烷:C4H10(g)+6.5O2(g)═4CO2(g)+5H2O(l);△H=﹣2869.6kJ/mol.
下列有关说法正确的是( )
2NH3(g)+CO2(g)⇌CO(NH2)2(I)+H2O(I)△H(I)
C(s)+O2(g)═CO2(g)△H=﹣393.5kJ/mol
CO2(g)+C(s)═2CO(g)△H=+172.46kJ/mol
Fe2O3+CO→Fe+CO2
若已知:2Fe(s)+ O2(g)═Fe2O3(s)△H=﹣824.21kJ/mol
根据上面三个热化学方程式,回答下列问题:
①H2O(l)=H2(g)+ O2(g) △H=+285.8 kJ/mol
②H2(g)+ O2(g)=H2O(g) △H=-241.8 kJ/mol
③NaOH(aq)+HCl(aq)=NaCl(aq)+H2O(l) △H=-57.3kJ/mol
④C(s)+ O2(g)=CO(g) △H=-110.5 kJ/mol
⑤C(s)+O2(g)=CO2(g) △H=-393.5 kJ/mol
回答下列问题:
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