摘要: 已知甲烷燃烧生成二氧化碳和液态水放出的热量为55.625 kJ·g-1.下列热化学方程式中不正确的是 A.CH4(g)+2O2(g)=CO2(g)+2H2O(l) ΔH=-890 kJ/mol B.1/2CH4(g)+O2(g)=1/2 CO2(g)+H2O(l) ΔH=-445 kJ/mol C.CO2(g)+2H2O(l)=CH4(g)+2O2(g) ΔH=+890 kJ/mol D.CH4(g)+2O2(g)=CO2(g)+2H2O(l) ΔH=-55.625 kJ/mol

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