OK, so what we have to do is get back underneath this reaction, and see what the molar quantities are.

我们应该做的是,再回到这个反应，看看摩尔量是多少。

麻省理工公开课 - 固态化学导论课程节选

So, you do this measurement, you measure with the gas, you measure the pressure and the molar volume.

现在让压强趋于，现在测量气体的压强，和摩尔体积。

麻省理工公开课 - 热力学与动力学课程节选

We invoke Dalton's Law of molar proportions, we write it subject to conservation of mass.

我们援引了摩尔分数的道尔顿定律，要服从质量守恒定律。

麻省理工公开课 - 固态化学导论课程节选

So I can make a quantity that I'll call V bar, which is the molar volume, the volume of one mole of a component in my system, and that becomes an intensive quantity.

所以我可以定义，一个叫做一横的量，这是摩尔体积系统中,一摩尔某种组分的体积，它就变成了。

麻省理工公开课 - 热力学与动力学课程节选

And then we can take the derivative with respect to temperature, it's just R over molar volume minus b.

这样我们求,压强对温度的偏导数，结果等于R除以摩尔体积V杠减去b的差。

麻省理工公开课 - 热力学与动力学课程节选

A molar enthalpy of or whatever, iron, as a solid at 298.15 Kelvin is zero.

98。15K下固态铁的，摩尔焓是零。

麻省理工公开课 - 热力学与动力学课程节选

So it's RT over molar volume minus b.

等于RT除以摩尔体积减去b的差。

麻省理工公开课 - 热力学与动力学课程节选

Equals a over molar volume squared.

等于a除以摩尔体积的平方。

麻省理工公开课 - 热力学与动力学课程节选