、从其它数据计算反应热 ■1.从燃烧热△Hm°计算 CH3OH()+O2→>CO2+2H2O△cHm°=-7266 CH2O(g)+O2→>CO2+H2O△cHm。=-5636 CH3OH(+O2->CH2O(g)+H2OO △Hm°=-7266-(-5636)=-1630kJmo1三、从其它数据计算反应热 ◼ 1.从燃烧热cm 计算 CH3OH(l) + O2→ CO2 + 2H2O cm ＝-726.6 CH2O(g) + O2→ CO2 + H2O cm ＝-563.6 CH3OH(l) + O2→ CH2O(g) +H2O (l) rm ＝ -726.6－(-563.6)＝-163.0 kJ·mol-1 2 1