0.5摩尔甲烷燃烧放热444.8kJ,则1摩尔放出889.6kJ。热化学方程式为CH4(g)+2O2(g)=CO2(g)+2H2O(l) △H=-889.6kJ/mol
答0.5摩尔甲烷燃烧放热444.8kJ,则1摩尔放出889.6kJ。热化学方程式为CH4(g)+2O2(g)=CO2(g)+2H2O(l) △H=-889.6kJ/mol