OK, you use the ideal gas law, etc., then you get a relationship that connects the pressure and the temperature, like here we got a relationship that connected the temperatures and the volumes together.

我们会得到，一个联系初末态,的压强和温度的，关系式,就像这个联系过程中。

麻省理工公开课 - 热力学与动力学课程节选