This study revamps and optimizes the teaching and learning process and instrument for the classic binary vapor–liquid equilibrium experiment by combining activity coefficient model simulations and practical exercises. Our teaching process combines a software simulation and practical exercises. Utilizing Aspen software, students can predict phase diagrams, independently design experimental measurement points, and evaluate models through regression. Comparing predicted regression values and experimental data helps students with error analysis and proposed experimental improvements. The experimental design is led by students, with online software assistance provided by the teacher. In addition, compared to traditional boiling bottles, the universality, efficiency, and accuracy of the experimental apparatus in this study are notably improved. The discrepancy between experimental data, prediction, and regression results sparks substantial interest and profound contemplation among students on the characteristics of experimental devices. The student-centered exploratory experiment considerably improves the student–teacher relationship in the context of teaching and learning.

中文翻译：

---

基于活度系数模型改进二元气液平衡实验的教/学过程

本研究通过活度系数模型模拟与实际练习相结合，对经典二元气液平衡实验的教学流程和仪器进行了改造和优化。我们的教学过程结合了软件模拟和实践练习。利用Aspen软件，学生可以预测相图，独立设计实验测量点，并通过回归评估模型。比较预测回归值和实验数据有助于学生进行误差分析并提出实验改进建议。实验设计由学生主导，教师提供在线软件协助。此外，与传统的沸腾瓶相比，本研究实验装置的通用性、效率和准确性均得到显着提高。实验数据、预测和回归结果之间的差异引发了学生对实验装置特性的浓厚兴趣和深刻思考。以学生为中心的探索性实验极大地改善了教学中的师生关系。