摘要:燃烧1g液态有机物.只生成0.05molCO2气体和1.2g液态水.且放出热量33.63kJ.该有机物的蒸汽对H2的相对密度为30.则该有机物燃烧的热化学方程式为(A) A.C3H8O(l)+9/2O2(g)=3CO2(g)+4H2O(l); △H=-2017.8kJ/mol B.C3H8 (l)+5O2(g)=3CO2(g)+4H2O(l); △H=-33.63kJ/mol C.C3H8(l)+5O2(g)=3CO2(g)+4H2O(l); △H=-1479.4kJ/mol D.C3H8O(l)+9/2O2(g)=3CO2(g)+4H2O(g); △H=-2017.8kJmol

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