众所周知,化学反应的平衡是宏观的静态平衡和微观的动态平衡的统一,两种平衡是同一事物的两个侧面,是平衡的基本属性和普遍规律。 化学平衡的重要标志是一定条件下存在一个平衡常数K,K可以用热力学方法普遍导出。能不能根据动态平衡原理,运用动力学方法普遍导出K呢?具体方法如何?这是化学教学中的一个重要问题。近年来有文章讨论这个问题,提出一些有益的看法。但有 It is well-known that the balance of chemical reactions is the unification of the macro-static balance and the micro-dynamic balance. The two balances are two sides of the same thing and are the basic properties and universal laws of balance. An important symbol of chemical equilibrium is the existence of an equilibrium constant K under certain conditions, K can be generally derived using thermodynamic methods. Can we use kinetic methods to derive K in general according to the principle of dynamic equilibrium? What is the specific method? This is an important issue in chemistry teaching. In recent years, there are articles discussing this issue and putting forward some useful suggestions. But there