So the temperature is intensive, and you can make intensive properties out of the extensive properties by dividing by the numberof moles in the system.

所以温度是强度量，你可以通过,除以系统中物质的摩尔数,来从广延量中导出强度量。

麻省理工公开课 - 热力学与动力学课程节选

We'll talk specifically about how many calories people are consuming in liquid form which has gone way, way up.

我们将具体谈论人们从饮料中,摄取的卡路里量,这个数字直线上升

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

How do we go from that experiment to H the terms that we're trying to get, these slopes.

我们怎样从实验得到我们想要的量？,记住，我们想要得到Δ

麻省理工公开课 - 热力学与动力学课程节选

So it looks like not too many more than half of you got this correct, so make sure you can look at your periodic table and figure out how to think about ionization energy in terms of z effective, not just in terms of memorizing what that trend is.

看起来只有一半多一点的人,做对了，所以请大家务必做到能够通过观察周期表,并在考虑电离能时,从有效核电量的观点出发，而不是仅仅依靠记住这个规律。

麻省理工公开课 - 化学原理课程节选

So now what we're going to do is start to extract what these things mean.

因此下一部要开始做的,就是从这些量里提取出它们的物理意义。

麻省理工公开课 - 热力学与动力学课程节选

This is because even though z, the atomic number is still increasing, we are also getting further away from the nucleus.

从有效核电量方面来想一想为什么，这是因为，尽管，Z，原子序数依然在变大，但我们同时也在离原子核越来越远。

麻省理工公开课 - 化学原理课程节选

We're talking about quantities both starting at two and going to three.

这里讨论的是,从2到3的变化量。

麻省理工公开课 - 热力学与动力学课程节选

We want to have that definition clear because in fact we're going to, we might want tabulate heats of reaction, right, and of course want to know what the conditions are for the tabulated values apply. And we're going to want to calculate them from other quantities and again, we're going to need to know each case what are the relevant conditions?

我们想要明确这个定义,因为实际上我们会想把,反应热制成表格，当然我们会,想知道表中的数据在什么样的,条件下是有效的，我们会,想要从其他的量中算出它们,再一次，我们需要知道,每种情形下相关的条件是什么？

麻省理工公开课 - 热力学与动力学课程节选