一道二组分相平衡系统计算题的解法

Methods for Solving the Problem of Calculation of Two Groups of Phase Equilibrium System

物理化学知识点繁多,公式多而难记,对典型习题采用不同方法解题可以有效的提升教学效果。对一道二组分相平衡系统的习题分别应用了杠杆规则和物质守恒原理两种方法进行解题,通过分析对比,总结了两种解题方法各自的优点。对同一题型采用不同方法进行解题,加深了学生对杠杆规则的理解,提高了学生灵活应用杠杆规则解题的能力,使学生进一步认识到物质守恒原理在相平衡中的重要性。

There are many knowledge points and formulas that are difficult to memorize in Physical Chemistry, and using different methods to typical exercises can effectively improve the teaching effect. A problem of two-component phase equilibrium system was calculated by using the lever rule and the law of conservation of matter, through analysis and comparison, each of the two methods had its advantages. Different methods were used to calculate the same problem type, which can deepen students’ understanding of the lever rule and improve students’ ability to flexibly apply the lever rules to solve the problems, and make students realize the importance of the principle of conservation of matter.