So what's the mole fraction of B in the gas phase?
那么B在气相中的摩尔分数是多少？
It's the molar fraction of B in the gas phase times the total pressure.
这分压等于气相中b的摩尔分数，乘以总压强。
B so it's got some mole fraction of B.
其中有一些摩尔分数的。
So that's our mole fraction of B.
这就是B的摩尔分数。
So that's our mole fraction of B.
这就是B的摩尔分数。
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