And the bigger lesson from that is that entropy, unlike energy u or enthalpy H, we could define an absolutely number for it.

热力学第三定律的一个更重要的推论是,与内能和自由焓不同，我们可以给上定义一个绝对的数值。

麻省理工公开课 - 热力学与动力学课程节选

We looked at pressure change before, actually, in discussing the third law, the fact that the entropy goes to zero as the absolute temperature goes to zero for a pure,perfect crystal.

在讨论热力学第三定律的时候，我们讨论过压强变化,即对于纯净的完美晶体,随着温度下降到绝对零度熵也变成零。

麻省理工公开课 - 热力学与动力学课程节选

Now, I'll give you the third law.

下面我来讲牛顿第三定律

耶鲁公开课 - 基础物理课程节选

So, over the last few lectures we've worked and struggled so formulate the second and third laws of thermodynamics in addition to the first.

在前几次课中,我们通过努力明确的,给出了热力学,第一，第二和第三定律。

麻省理工公开课 - 热力学与动力学课程节选

And then the third law comes in, and that's the depressing part here.

然后第三定律跳出来，这里就是杯具的所在。

麻省理工公开课 - 热力学与动力学课程节选

The only way you could possibly contemplate it is to be working at absolute zero Kelvin.

在绝对零度下工作,猜一下热力学第三定律告诉我们什么？

麻省理工公开课 - 热力学与动力学课程节选

Last time we reach the third law which is telling us that we can't quite get to zero degrees Kelvin .but that as the temperature approaches zero degrees Kelvin, the absolute entropy of a pure substance in perfect crystalline form is zero.

上次课我们得到了热力学第三定律,这个定律告诉我们我们无法,达到0K的温度,但是在我们接近绝对零度的过程中，以完美晶体形式存在的纯物质的绝对熵,也趋向于零。

麻省理工公开课 - 热力学与动力学课程节选

We'll give it a name, but by linking that T to that T, we can also figure out the same T must be exerted on this one by Newton's third law, because if this block is the only one that could be pulling this rope with T.

我们先给它命个名,把这个 T 和那个 T 联系起来,利用牛顿第三定律,我们可以知道这个 T 也一定作用在这个物体上,因为如果这个物体是唯一,受到绳子拉力 T 的物体

耶鲁公开课 - 基础物理课程节选