And we combine this with first law, which for the case of pressure volume changes we write as this.

结合第一和第二定律,对于压强体积功我们可以这样写。

麻省理工公开课 - 热力学与动力学课程节选

Let's just first fill in this for the b 2 case.

让我们先填完这个B2的情况。

麻省理工公开课 - 化学原理课程节选