在相同的温度和压强下，相同体积的气体具有相同的分子数，反之亦然。取同温同压下相同体积的CO和O2混合，在一定条件下充分反应，恢复到初始温度和压强。下列说法正确的是_刷题宝

题干

在相同的温度和压强下，相同体积的气体具有相同的分子数，反之亦然。取同温同压下相同体积的CO和O₂混合，在一定条件下充分反应，恢复到初始温度和压强。下列说法正确的是（）

A：参加反应的CO和O₂的体积比为1:2

B：生成的CO₂分子个数为原来气体分子数的三分之二

C：反应后气体的体积为原来的四分之三

D：反应后的气体中C,O原子的个数比为1:2

上一题下一题 0.0难度选择题更新时间:2013-02-21 11:34:31

答案(点此获取答案解析）

C

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