空气的平均分子质量怎么算的
人气：389 ℃ 时间：2019-12-13 00:55:45
解答
空气中各个组分的分子量与对应含量的乘机.
一般是只取氧气和氮气来算：
空气平均分子量=32*25%+28*75%=29
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