• 2022-06-15
    ‏下列反应中符合燃烧热定义的是( )‌
    A: H2(g) + 1/2O2(g) → H2O(g)
    B: CH3Cl(g) + 3/2O2(g) → CO2(g) + H2O(l) + HCl(g)
    C: CH2=CH2(g) + 3O2(s) → 2CO2(g) + 2H2O(l)
    D: CH3CHO(g) + 1/2O2(s) → CH3COOH(l)