it becomes a gray area but it should be pretty clear if you can treat something is reversible are irreversible.

这是个灰色区域,但什么可以当作可逆过程处理,而什么要当作不可逆过程,这是相当清楚的。

麻省理工公开课 - 热力学与动力学课程节选

I mean we can, we can sort of understand why OK, the total energy, if we measure it, we measure a process which is not reversible.

例如我们易于理解为什么，当试图测量一个不可逆系统的总能量，给出的或许。

麻省理工公开课 - 热力学与动力学课程节选

The other beauty about - beautiful thing about proteins is that if you make subtle conformational changes, often those changes are reversible.

蛋白质的另一个美妙之处就是,如果蛋白质发生一些小的构像改变,这些改变通常是可逆的

耶鲁公开课 - 生物医学工程探索课程节选

Now, if we go back to our Carnot cycle which is a set of reversible paths, it's useful to compare this to what happens in an irreversible case.

如果回到卡诺循环,它是由一系列可逆过程组成，我们将它,和不可逆过程的情况相比较。

麻省理工公开课 - 热力学与动力学课程节选

If it was non-reversible, I would be allowed to put an initial point and a final point, but I wouldn't be allowed to put a path between them like this, connecting them together.

如果是不可逆过程，我可以画出过程的初态点,和末态点，但是我不能再像这样,画出连接这两个点的，路径曲线来。

麻省理工公开课 - 热力学与动力学课程节选

du But if it's not reversible, it's not du.

但如果这不是可逆过程，它不等于。

麻省理工公开课 - 热力学与动力学课程节选

But you don't compress it so quickly that you're not in there reversible process so you compress that if you were to feel the temperature of the air and you can feel it through the nozzle gives you an idea of the temperature of the air inside your bicycle pump.

但是压缩速度,也不能太快,否则就不是,可逆过程了,这样当压缩气体时,从喷嘴可以感受到,内部气体的温度。

麻省理工公开课 - 热力学与动力学课程节选

Reversible. Reversible means that if I looked at dw it's minus p reversible.

接下来是“可逆“,他说明当计算dw=-PextdV时。

麻省理工公开课 - 热力学与动力学课程节选

if it's a reversible process then the equality holds, but if it's irreversible, which means it happens spontaneously, T then dS is greater than this.

对于可逆过程，等号成立，但是如果是不可逆过程，这些不可逆过程是自发进行的，那么dS大于dq除以。

麻省理工公开课 - 热力学与动力学课程节选

If it's a reversible process, we know the work is the area under the curve.

对可逆过程，功等于p-V图上。

麻省理工公开课 - 热力学与动力学课程节选