在1.01×105Pa、120℃时,22.4L A、B两种烷烃组成的混合气体,在足量O2

1.01×105a120℃时,22.4L AB两种烷烃组成的混合气体,在足量O2中充分燃烧后,得到同温同压下2.5molCO263g水蒸气,且A分子中比B2个碳原子,试确定AB的分子式及体积比。

答案

1AC3H8BCH4,体积比为31

2AC4H10BC2H6,体积比为13

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