v du/dV under constant temperature. du/dT v under constant volume. You use the Joule expansion to find these quantities.

像偏u偏v，恒温下的偏u偏,恒容下的偏u偏,你们知道怎么运用焦耳定律。

麻省理工公开课 - 热力学与动力学课程节选

We already did that. OK, dH/dT constant pressure is Cp. That was easy one.

我们已经做过这个计算了，好的，在恒压,状态下的偏H偏T就是Cp，这个很简单。

麻省理工公开课 - 热力学与动力学课程节选

dT That means that dH is also equal to dH/dT, constant pressure dT. All right, so now I've T ot more dH/dT under constant pressure.

也等于偏H偏T恒压乘以，现在我已经得到了在恒压,状态下的偏H偏。

麻省理工公开课 - 热力学与动力学课程节选

T Remember, we're trying to get delta H, p we're trying to get dH/dT constant pressure and dH/dp constant temperature. OK, these are the two things were trying to get here.

想要得到在恒压状态下的偏H偏，和在恒温状态下的偏H偏,好的，这是两个我们，在这里想要得到的东西。

麻省理工公开课 - 热力学与动力学课程节选