试题 试卷
题型:填空题 题类:常考题 难易度:普通
用盖斯定律进行有关反应热的计算
①2CH3OH(l)+3O2(g)═2CO2(g)+4H2O(g)△H═﹣akJ•mol﹣1
②2CO(g)+O2(g)═2CO2(g)△H═﹣bkJ•mol﹣1
③H2O(g)═H2O(l)△H═﹣ckJ•mol﹣1
则CH3OH(l)+O2(g)═CO(g)+2H2O(l)△H═ kJ•mol﹣1 .
C(s)+ O2(g)═CO(g)△H1=﹣110.5kJ•mol﹣1
C(s)+O2(g)═CO2(g)△H2=﹣393.5kJ•mol﹣1则C(s)+CO2(g)═2CO(g)的△H为( )
①Fe2O3(s)+3CO(g)═2Fe(s)+3CO2(g)△H1=﹣25kJ•mol﹣1;
②3Fe2O3(s)+CO(g)═2Fe3O4(s)+CO2(g)△H2=﹣47kJ•mol﹣1;
③Fe3O4(s)+CO(g)═3FeO(s)+CO2(g)△H3=+19kJ•mol﹣1 .
写出FeO(s)被CO还原成Fe和CO2的热化学方程式{#blank#}1{#/blank#}.
则Zn(s)+Ag2O(s)=ZnO(s)+2Ag(s)的ΔH等于( )
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