在物理化学的教学过程中,有关热力学第一、第二定律的热力学推导与证明题,对于初学者来说解决起来比较困难,通过多年的教学实践总结出三种方法,能比较快速、直接地进行推导证明,从而解决了学生的学习困难。 In the process of teaching physics and chemistry, thermodynamics derivation and proving questions about the first law and the second law of thermodynamics are more difficult to be solved for beginners. Through three years of teaching practice, three methods are summarized, which can be used relatively quickly and directly Prove the proof, thus solving the student’s learning difficulties.