B So it's got some mole fraction of B.

其中有一些摩尔分数的。

The constraint is that the sum of all the mole factions has to be equal to one That's what it is, to be a mole fraction.

约束条件是,所有摩尔分数之和等于1。,这就是摩尔分数的意义。

So this is the one that's showing us the mole fraction in the liquid phase.

这是告诉我们,液相摩尔分数的曲线。

If you look and see, well, now we should be able to determine the mole fraction in the gas as well.

如果你看，好，现在我们也可以确定,气相中的摩尔分数。

X So the mole fraction at any time is n minus x divided by the total number of moles, x which we just calculated as n plus x.

任何时候的摩尔分数是n减,除以总摩尔数，就是我们计算的n加。

And what that means is that, for example, VA XA And that's just equal to XA, the mole fraction of A.

并且它意味着，例如，除以V的值和NA除以N相同，VA，over，V，is，the，same，as，NA，over，N。,它就等于，A的摩尔分数。