自发过程总熵判据的讨论式教学实践  

Discussion Teaching Practice on Total Entropy Criterion for Spontaneous Process

作　　者：许海[1] 郭玉鹏[1] 

机构地区：[1]吉林大学化学学院

出　　处：《化学教育》2017年第2期13-15,共3页Chinese Journal of Chemical Education

基　　金：吉林大学本科教学改革项目:化学学科创新型人才培养体系的改革建设(2015XYB042);非化专业物理化学课程考核评价体系的改革与实践(2015XYB224)

摘　　要：将讨论式教学法的基本思想应用到物理化学的课堂教学中，对物理化学的教学难点——热力学自发过程总熵判据的适用条件问题进行了深入的讨论，最终归纳总结，得出重要结论：总熵判据只能用来判断过程的可逆性，不能直接判断过程的自发性。要想进一步判断过程的自发性质，须结合系统与环境之间交换的总功进行判断。通过讨论式教学实践，学生对热力学自发过程总熵判据的适用条件有了更加深入的理解，给后续课程的学习打下了良好的基础。This paper applied discussion teaching method to the classroom teaching of physi- cal chemistry, deeply discussed the applicable conditions of total entropy criterion of thermody- namic spontaneous process, and finally summarized important conclusion, the total entropy crite- rion can only be used to judge the reversibility of the process and not judge the spontaneity of the process directly. In order to further determine the nature of spontaneous process, the total ener- gy exchange between system and environment must be combined with. Through the practice of discussion teaching, students could have a deeper understanding of the applicable conditions of the total entropy criterion of thermodynamic spontaneous process, which could lay a good founda- tion for the following course study.

关 键 词：讨论式教学 教学改革与实践 热力学 自发过程 总熵判据 

分 类 号：G642[文化科学—高等教育学] O642-4[文化科学—教育学]