How to go from one reference point to the other with this property. This property, f which we're going to call f.

这两个参考点插值,得到不同温度时工作物质的特性，我们把这一特性记做。

麻省理工公开课 - 热力学与动力学课程节选

So this is going to end up at T2 a different temperature, we'll call it T2.

这个的末态有不同的温度,我们叫它。

麻省理工公开课 - 热力学与动力学课程节选

The purpose here is to look at a series of processes in which temperature is held constant, and we're going to calculate how much work we get from allowing a gas to expand under various conditions.

目的是让大家了解一下,几个保持温度不变的过程，然后我们将计算,气体在不同膨胀过程中,的对外做功。

麻省理工公开课 - 热力学与动力学课程节选

If I look at different points in my container during that path, I'm going to have to use a different value of pressure or different value of temperature That's not an equilibrium state, and that process turns out then to be an irreversible process.

如果我要研究在路径中容器里的,不同的点，我就得在容器里不同的点上使用,不同的压强值,或不同的温度值,实际上这不是个平衡态，这个过程是,不可逆过程。

麻省理工公开课 - 热力学与动力学课程节选

So we're going to start with a mole of gas, V at some pressure, some volume, T temperature and some mole so V, doing it per mole, and we're going to do two paths here.

假设有1摩尔气体，具有一点的压强p，体积，温度，我们将让它，经过两条不同的路径。

麻省理工公开课 - 热力学与动力学课程节选

V They do have the same temperature though.

不同，a，different，volume。,但是温度是一样的。

麻省理工公开课 - 热力学与动力学课程节选