化工热力学基本关系式的教学方法改革与实践

Reform and Practice of Teaching Method for the Basic Relations in Chemical Engineering Thermodynamics

热力学基本关系式是建立状态函数与热力学偏导数之间联系的重要方程,而化工热力学课程中的热力学偏导数是学生普遍反映难度较大的知识点。文章根据问卷调研结果分析了化工专业本科生在热力学偏导数推导过程中遇到的问题,并有针对性地提出一种相对简单、易于学生理解和接受的推导方法。教学实践表明,新的推导方法不仅提高了学生对热力学关系式的掌握程度,而且展现了化工热力学的逻辑性与系统性。

The basic relations in chemical engineering thermodynamics are the important equations that establish the relationships between the state functions and the partial derivatives of thermodynamics,where the latter part is also the most difficult knowledge generally reflected from students during teaching process.This paper analyzed the problems existing in current study of the derivation of thermodynamics partial derivatives for the undergraduates majoring chemical enigneering,and put forward a relatively simple derivation method that is easy for students to understand and accept.The new method not only makes students grasp thermodynamic relations more deeply,but also demonstrates the logic and systematic features of chemical engineering thermodynamics.