• 2022-06-06
    已知298K下ΔfHmΘ(CH3OH,l)=-238.66kJ·mol-1,ΔfHmΘ(CH3OH,g)=-200.66kJ·mol-1,则在同一温度下甲醇的标准摩尔气化焓ΔvapHmΘ(CH3OH)=()
    A: -38.00kJ·mol
    B: 38.00kJ·mol
    C: 19.00kJ·mol
    D: -19.00kJ·mol