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

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