It's true for any gas, and if I remove this limit here, r t is equal to p v bar, I'm going to call that an ideal gas.

这样的气体被称作理想气体,这就是理想气体的性质，理想气体的涵义是什么？

麻省理工公开课 - 热力学与动力学课程节选

So I can make a quantity that I'll call V bar, which is the molar volume, the volume of one mole of a component in my system, and that becomes an intensive quantity.

所以我可以定义，一个叫做一横的量，这是摩尔体积系统中,一摩尔某种组分的体积，它就变成了。

麻省理工公开课 - 热力学与动力学课程节选