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四月初七

铜虫 (正式写手)

[求助] 计算混合气体物性时,各分气体的物性怎么选?

我有点晕了
现求温度T,压力P下混合气体的密度R,混合气体由两种气体1和2组成,体积比例分别为X1和X2
则R=R1X1+R2X2 对吧
问:R1和R2是取什么压力下的密度值?
如,R1取a还是b??
a. 温度T,压力P下气体1的密度
b. 温度T,压力PX1(即分压下)下气体1的密度
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四月初七

铜虫 (正式写手)

搞清楚了,应该选a,总压下各气体的密度
P和V相关联,其中一个取分值,另一个就要选总值
2楼2013-10-24 12:41:05
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