等温过程吉布斯函数变化计算公式的另一种推导方法

摘要

本文从吉布斯函数的定义式中学生最为熟悉的 G = H - TS 出发，推导了封闭系统经过等温且非体积功等于零的过程时，其吉布斯函数变化的计算公式，并进一步明确了等温过程吉布斯函数变化每个计算公式的适用条件，从而为教师的备课和学生的自学理清了脉络。教学实践表明：取得了较好的教学效果。%This text deduces the calculating formula for the change of the Gibbs function when the closing system experiences a process that temperature is constant and non - physical volume achievement is equal to zero from the definition type of the Gibbs function that is the most familiar to students. And further to make clear the applicative condition of each formula. Thus it can clarify the sequence for teachers preparing lessons and students′ self - study. The teaching practice shows good teaching effects.