试题 试卷
题型:单选题 题类:常考题 难易度:普通
浙江省温州市2020-2021学年高三上学期化学11月月考试卷
H2S(g)+ O2(g)=SO2(g)+H2O(g) ΔH1
H2S(g)+ O2(g)=S(g)+H2O(g) ΔH2
2H2S(g)+SO2(g)= S8(s)+2H2O(l) ΔH3
2H2S(g)+SO2(g)= S8(g)+2H2O(g) ΔH4
8S(g)=S8(g) ΔH5
·(1)CH3COOH(l)+2O2(g)═2CO2(g)+2H2O(l)△H1=﹣870.3kJ•mol﹣1
·(2)C(s)+O2(g)═CO2(g)△H2=﹣393.5kJ•mol﹣1
·(3)H2(g)+ O2(g)═H2O(l)△H3=﹣285.8kJ•mol﹣1
则反应2C(s)+2H2(g)+O2(g)═CH3COOH(l)的△H为( )
①H2(g)+ O2(g)═H2O(l)△H=﹣285.8kJ•mol﹣1
②H2(g)+ O2(g)═H2O(g)△H=﹣241.8kJ•mol﹣1
③C(s)+ O2(g)═CO(g)△H=﹣110.5kJ•mol﹣1
④C(s)+O2(g)═CO2(g)△H=﹣393.5kJ•mol﹣1
回答下列各问题:
SO2(g)+NH3•H2O(aq)=NH4HSO3(aq)△H1=a kJ•mol﹣1
NH3•H2O(aq)+NH4HSO3(aq)=(NH4)2SO3(aq)+H2O(l)△H2=b kJ•mol﹣1
2(NH4)2SO3(aq)+O2(g)=2(NH4)2SO4(aq)△H3=c kJ•mol﹣1
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