如果我们计算气体混合过程中熵的变化，我们会发现这个量是正的。

If we calculate the change in entropy during gas mixing, we will find that this quantity is positive.

youdao

如果我们测量热力学量会发现自由焓的变化,等于4千焦，正4千焦。，delta，H，is，4，kiloJoules，，plus，4，kiloJoules。,熵增dS是45焦耳每开尔文。

If we measure the thermodynamics, we discover that dH Delta S is 45 joules per Kelvin.

youdao

实际上如果我们计算气体混合过程中,熵的变化，我们会发现这个量是正的。

And we saw that in fact in this case delta S of mixing, we calculated it, saw that it is positive.

youdao

And we saw that in fact in this case delta S of mixing, we calculated it, saw that it is positive.

实际上如果我们计算气体混合过程中,熵的变化，我们会发现这个量是正的。

麻省理工公开课 - 热力学与动力学课程节选