(1)H2(g)+½O2(g)=H2O(g) ∆H=- 241.8kJ/mol (2)H2(g)+ ½O2(g)=H2O(l) ∆H =- 285.8kJ/mol (3)2H2(g)+O2(g)=2H2O(l) ∆H=- 571.6kJ/mol 哪一个是H2的燃烧热? ————
讨 论
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