PROFESSOR BAWENDI: So, for an ideal gas, the isothermal is the easy one because the energy doesn't change.

对理想气体，等温过程最简单,因为能量不变。

麻省理工公开课 - 热力学与动力学课程节选

It's definitely not an ideal situation. Generally don't do as well on those.

这当然不是什么理想的情况。这样的考试一般考得不怎么好。

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It's true for any gas, and if I remove this limit here, r t is equal to p v bar, I'm going to call that an ideal gas.

这样的气体被称作理想气体,这就是理想气体的性质，理想气体的涵义是什么？

麻省理工公开课 - 热力学与动力学课程节选

Now going from three to four right, so we have another isothermal process for an ideal gas, so I won't try to make you sing again so soon.

从第三点到第四点，这也是一个理想气体的,恒温过程，这次不用你们集体回答了。

麻省理工公开课 - 热力学与动力学课程节选

If we don't have an ideal gas.

如果不是理想气体。

麻省理工公开课 - 热力学与动力学课程节选