So we know that in each case the heat is going to be the opposite of the work, but the work isn't the same in these two different ways of getting from here to here, right. So let's just see it explicitly. Here's our qA.

所以我们知道在每种情形下功,与热量相差一个负号,但从这里到这里，在这两条路径,中的功是不同的，对吧？,那么让我们明确地看一下。

麻省理工公开课 - 热力学与动力学课程节选

If T is less than T inversion, you have the opposite case, and dT/dp is greater than zero.

如果T比转变温度低,情况就相反，偏T偏p大于零。

麻省理工公开课 - 热力学与动力学课程节选