摘要
本文论述了热力学第一定律的普遍表达式和在一定条件下的限定表达式，并通过举例着重分析了不可逆过程中能量的转换情况，最后指出了在基础物理教学中引入非平衡热力学基本原理的必要性。
This thesis discussed the general expression of the First Law of the thermodynamcs and its re-stricted expression under specified conditions, The transformation situations of energy in the irreversible pro- cesses was analysised emphatically in company with examples. The necessity introducing fundamental princi-ples of irreversible thermodynalics in the teaching of basic physics was point out last.
关键词
总能量
内能
能量转化
热力学第一定律
total energy internal energy energical transformation reversible irreversible
