University Chemistry ›› 2022, Vol. 37 ›› Issue (2): 2110017.doi: 10.3866/PKU.DXHX202110017

Special Issue: 化学实验教学和管理

• Chemistry Laboratory • Previous Articles     Next Articles

Discussion on Teaching Reform Mode Based on a Classical Experiment: An Example of Experimental Improvement of the Gas-Liquid Equilibrium Phase Diagram with a Binary Liquid System

Hui Xiong(), Yinghui Wu, Beina Wu, Fuming Mei, Yuefa Gong   

  • Received:2021-10-08 Accepted:2021-11-24 Published:2021-12-09
  • Contact: Hui Xiong


From the aspects of experimental device, experimental system, solution preparation, and data measurement, comprehensive exploration of the classical physical chemistry experiment "gas-liquid equilibrium phase diagram of a binary liquid system" was carried out. The consumption of experimental reagents was reduced, the experimental time was shortened, the operability and reproducibility of the experiment was improved, and the potential safety hazards in the experimental process were eliminated. After several years of engineering experiment teaching practice, these improvement measures are shown to enhance students' understanding of the low-carbon environmental protection concept, improve the experimental process experience, and strengthen the innovative effect of classical experiments. By guiding students to deeply understand the basic theory of gas-liquid phase equilibrium, these measures will help cultivate students' innovative thinking and obtain good experimental teaching evaluation.

Key words: Binary liquid system phase diagram, Gas liquid equilibrium, Experimental improvement, Teaching innovation


  • G64