And we can do that by going through and deriving What we'll call the fundamental equations of thermodynamics.

通过推导,所谓的,基本热力学方程可以做到这一点。

麻省理工公开课 - 热力学与动力学课程节选

In this case, V = /P. Have two quantities and the number of moles gives you another property. You don't need to know the volume. All you need to know is the pressure and temperature and the number of moles to get the volume.

以及气体的摩尔数,就可以得到第三个量,知道压强，温度和气体的,摩尔数就可以推导出气体的体积,这称为状态方程,它建立了状态函数之间的联系。

麻省理工公开课 - 热力学与动力学课程节选