一种判断压力影响化学平衡移动的简便方法——等量抵消法

A kind of easy and convenient method judging intensity of pressure changing the shift of chemical equilibrium——The method of the same bracket canceling out each other

判断压强影响化学平衡移动的问题,是化学平衡教学内容中的一个难点。在吕·查德里原理的基础上,将Qp、Kp和△G的关系转化为Qc、Kc和△G的关系,用“等量抵消法”判断压强改变化学平衡的方向,可使问题简单化,易于教师教学和学生理解。

Orientation of judging intensity of pressure affecting the shift of chemical equilibrium is a difficult question of chemical equilibrium teaching. The essay bases upon Le·Chatelier`s principle. It bases on relation between pressure quotient, pressure equilibrium constant (Qp,Kp) and Gibbs function Change transforming into consistency quotient, consistency equilibrium constant (Qc,Kc) and Gibbs function Change. It puts forward using ?The method of the same bracket canceling out each other? judging Orieutation of chemical equilibrlum. It is easy for the teacher to teach and the student to study understand.