理想气体恒pT过程中可逆体积功的计算  

Calculations of Reversible Expansion Work in A Perfect Gas System undergo Constant-pT Process

作　　者：杨嫣[1] 陈山川[1] 张改[1] 谢娟[1] YANG Yan;CHEN Shan-chuan;ZHANG Gai;XIE Juan(School of Material Science and Chemical Engineering,Xi'an Technological University,Shaanxi Xi'an 710021,China)

机构地区：[1]西安工业大学材料与化工学院,陕西西安710021

出　　处：《广州化工》2021年第11期127-128,160,共3页GuangZhou Chemical Industry

基　　金：西安工业大学教学改革研究项目(No.17JGY15,);西安工业大学2016年MOOC建设《无机化学》资助项目。

摘　　要：热和功都不是状态函数,它们的值与系统经历的具体过程相关。在物理化学课程中理想气体系统体积功的计算是物理化学教学的重点之一,亦是难点之一。理想气体沿pT=常数的途径可逆膨胀或压缩过程是一类特殊的过程,此过程中可逆体积功的计算较难。本文采用五种不同的方法对此过程中的体积功进行了计算。介绍了这类问题的解题思路和技巧。Heat and work are not state functions,and their values are related to the specific process of the system.In Physical Chemistry,the calculation of expansion work in perfect gas systems is one of the key points,and it is also one of the difficulties.The reversible expansion or compression of a perfect gas along the path of pT=constant is a special process,and it is difficult to calculate the expansion work.Five different methods were used to calculate the expansion work.The ideas and skills for solving these problems were introduced.

关 键 词：物理化学 理想气体 可逆过程 体积功 

分 类 号：G642[文化科学—高等教育学]