At the phase transition temperature for the two phases, those things have to be equal.

对于两个相的相变温度，这些东西应该相等。

youdao

So this is an example of the Gibbs phase rule, 1 specific where C happens to be equal to one.

这是吉布斯相律的一个例子，这个例子里面C等于。

youdao

Now if we look at Raoult's law, it's straightforward to say what is the chemical potential for each of the substances in the liquid and the gas phase. Of course, it has to be equal.

如果我看看拉乌尔定律，很直接地就知道，液体和气体中，每一种物质的化学势，当然，它们必须相等。

youdao