This paper tries to prove equivalence of Kelvin Statement and Clausius Statement of the second law of thermodynamics under negative absolute temperature by reduction to absurdity.

用反证法证明在负绝对温度下热力学第二定律的开尔文表述和克劳修斯表述等效。

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And we had the similar statement by Kelvin about the heat engine that required that some heat gets dumped into a cold reservoir in the process of converting the heat from the hot reservoir into work.

相同的陈述，同样的有开尔文表述：，把热量完全从高温热源，转移至低温热源的过程中，必然有功的输出。

youdao

And we had the similar statement by Kelvin about the heat engine that required that some heat gets dumped into a cold reservoir in the process of converting the heat from the hot reservoir into work.

相同的陈述,同样的有开尔文表述：,把热量完全从高温热源,转移至低温热源的过程中,必然有功的输出。

麻省理工公开课 - 热力学与动力学课程节选