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题型:填空题 题类:常考题 难易度:普通
①2C(s)+O2(g)═2CO(g)△H1=﹣225.8kJ/mol
②C(s)+O2(g)═CO2 (g)△H2=﹣394.4kJ/mol
请回答:
(1)反应①属于 (填“吸热”或“放热”)反应.
(2)反应①消耗24gC(s)时,△H= kJ/mol.
(3)反应②生成1mol CO2(g)时,△H= kJ/mol.
(4)反应C(s)+CO2(g)═2CO(g)△H= kJ/mol.
②CO(g)+1/2 O2(g)= CO2(g) ΔH=-b kJ/mol
③H2(g)+1/2 O2(g)= H2O(g) ΔH=-c kJ/mol
④H2(g)+1/2 O2(g)= H2O(l) ΔH=-d kJ/mol
下列叙述错误的是( )
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