这就是我们总是，讨论不可逆膨胀的原因，因为它，比较容易描述。

That's why we always talk about irreversible expansion, because it's easy to write down an irreversible expansion.

youdao

不可逆小于q可逆，q, irreversible, is, less, than, q, reversible。，换句话说，不可逆等温膨胀，从高温热源吸收的热量，少于可逆等温膨胀。

Q In other words, and irreversible isothermal expansion takes less heat from the hot reservoir than a reversible one does.

youdao

根据这一定律，在热气体与冷气体的自发混合、气体向真空的自由膨胀以及燃料的燃烧之类的不可逆过程中，熵都是增加的。

The law states that entropy increases during irreversible processes such as spontaneous mixing of hot and cold gases, uncontrolled expansion of a gas into a vacuum, and combustion of fuel.

youdao

PROFESSOR BAWENDI: The only But it's hard to imagine an irreversible compression the way we can just imagine an irreversible expansion.

,但是我们很难,像描述不可逆膨胀一样,来描述不可逆压缩。

麻省理工公开课 - 热力学与动力学课程节选

That's why we always talk about irreversible expansion, because it's easy to write down an irreversible expansion.

这就是我们总是,讨论不可逆膨胀的原因，因为它,比较容易描述。

麻省理工公开课 - 热力学与动力学课程节选

I think it's, but it's more complicated, but you're basically right, basically right.

它比不可逆膨胀更复杂，但是你的观点从原则上来说是对的。

麻省理工公开课 - 热力学与动力学课程节选