巧用符号规则快速演算Maxwell关系式  

An Ingenious Sign Rule for Quick Calculation of Maxwell Relations

作　　者：陈权启[1] 刘长久[1] 杨建文[1] 

机构地区：[1]桂林理工大学化学与生物工程学院,广西桂林541004

出　　处：《广东化工》2014年第9期260-261,共2页Guangdong Chemical Industry

基　　金：新世纪广西高等教育教学改革项目(桂教高教[2010]130号;2010JGB039);广西高教教学名师教学改革项目(桂教高教[2012]25号;2012GXMS180)

摘　　要：Maxwell关系式是化学热力学中非常重要的公式,但公式中存在交替出现的偏导数和状态函数变量,导致公式结构相似、难记忆。本文针对Maxwell关系式难记忆的问题,介绍一种简单、高效的记忆方法—符号规则记忆法,在教学过程中引入符号规则,成功解决学生记忆Maxwell关系式的难题,学生熟练掌握Maxwell关系式。Maxwell relations are very important formulae in chemical thermodynamics. However, the existence of alternating partial derivate and state function in Maxwell relations makes the structure of formula similar and leads to the difficulty in memorization of Maxwell relations. To overcome the problems in memorization of Maxwell relations, a simple and efficient method to remember Maxwell relations, i.e. a sign rule for remembering Maxwell relations, was introduced in this paper and the introduction of the sign rule in the teaching processes succeeded in solving the difficulty of memorization of Maxwell relations and was helpful for students to master Maxwell relations in writing accurate formulae and the application of Maxwell relations.

关 键 词：物理化学 热力学 Maxwell关系式 

分 类 号：G4[文化科学—教育学]