.已知:C(s)+O2(g)═CO2(g)△H1CO2(g)+C(s)═2CO(g)△H22CO(g)+O2(...
问题详情:.已知:C(s)+O2(g)═CO2(g)△H1CO2(g)+C(s)═2CO(g)△H22CO(g)+O2(g)═2CO2(g)△H34Fe(s)+3O2(g)═2Fe2O3(s)△H43CO(g)+Fe2O3(s)═3CO2(g)+2Fe(s)△H5下列关于上述反应焓变的判断正确的是()A.△H1>0,△H3<0 B.△H2>0,△H4>0C.△H1=△H2+△H3 ...