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题型:单选题 题类:常考题 难易度:普通
燃烧热
② N2 (g)+O2(g)═NO2(g)△H=+33.9kJ/mol
③ N2 (g)+ H2(g)═NH3(g)△H=﹣46.0kJ/mol
计算NH3(g)燃烧生成NO2(g)和H2O(g)的燃烧热( )
则1molC(s)在氧气中燃烧生成CO时的△H值为( )
①C4H10(g)+ O2(g)═4CO2(g)+5H2O(l)△H=﹣2 878kJ•mol﹣1
②C4H10(g)+ O2(g)═4CO2(g)+5H2O(g)△H=﹣2 658kJ•mol﹣1
③C4H10(g)+ O2(g)═4CO(g)+5H2O(l)△H=﹣1 746kJ•mol﹣1
④C4H10(g)+ O2(g)═4CO(g)+5H2O(g)△H=﹣1 526kJ•mol﹣1
由此判断,正丁烷的燃烧热是 ( )
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