Here's yB. The gas mole fraction.
这是yB，气相摩尔分数。
So that's our mole fraction of B.
这就是B的摩尔分数。
摩尔分数很小。
气体摩尔分数。
B so it's got some mole fraction of B.
其中有一些摩尔分数的。
So this is the mole fraction of the liquid.
这是液相的摩尔分数。
Well it's the mole fraction of a in the gas.
这是气体中a的摩尔分数。
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？
So, here is the liquid mole fraction at temperature two.
好，这是二点温度下的液态摩尔分数。
PROFESSOR: No. Because, so it's the mole fraction in the gas phase.
教授：不，因为这是气态中的摩尔分数。
And you'll have some different mole fraction than you started with before.
你会和之前开始的时候，有不同的摩尔分数。
OK, so we're going to look at temperature and mole fraction phase diagrams.
好，让我们看看温度,和摩尔分数相图。
You decrease the mole fraction of the less volatile material in the gas phase.
更不易挥发的物质，在气相中的，摩尔分数减小了。
And for each component we have to describe its mole fraction in that particular phase.
对每一个组分我们都要知道，它在各个相中的摩尔分数。
And for each component we have to describe its mole fraction in that particular phase.
对每一个组分我们都要知道，它在各个相中的摩尔分数。
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