<旧知回顾>
1、在25 ℃、101 kPa下,16g甲醇燃烧生成CO2和液态水时放热362.9kJ,下列热化学方程式正确的是( ) A. CH3OH(l)+O2(g) ===CO2(g)+2H2O(l) ΔH = +725.8 kJ·mol-1 B. 2CH3OH(l)+3O2(g) ===2CO2(g)+4H2O(g) ΔH = -1 451.6 kJ·mol-1 C. 2CH3OH(l)+3O2(g) ===2CO2(g)+4H2O(l) ΔH = -362.9 kJ·mol-1 D. 2CH3OH(l)+3O2(g) ===2CO2(g)+4H2O(l) ΔH = -1 451.6 kJ·mol-1