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Citation: Yongmin Zhang, Shuang Guo, Mingyue Zhu, Menghui Liu, Sinong Li. Design and Improvement of Physicochemical Experiments Based on Problem-Oriented Learning: a Case Study of Liquid Surface Tension Measurement[J]. University Chemistry, ;2024, 39(2): 21-27. doi: 10.3866/PKU.DXHX202307026 shu

Design and Improvement of Physicochemical Experiments Based on Problem-Oriented Learning: a Case Study of Liquid Surface Tension Measurement

School of Chemical & Materials Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, China

Corresponding author: Yongmin Zhang, zhangym@jiangnan.edu.cn
Received Date: 10 July 2023

The purpose of this project is to guide students in independently designing experiments based on problem-oriented approach, taking a commonplace phenomenon (white flocs formed during laundry) as the starting point. The measurement of surface tension is integrated into the process of exploring the underlying chemical principles of daily life phenomena, and an exploratory experimental model that follows a “problem identification-practical exploration-textbook consolidation” framework is established by combining a diverse array of techniques, thereby reinforcing the students’ understanding of colloid and interface chemistry. The revised experiment offers richer content, greater challenges, enhanced comprehensiveness, and increased engagement, effectively fostering students’ abilities to analyze and solve problems and nurturing their inquisitive thinking. Furthermore, this experiment ensures a high degree of safety, ease of operation, and requires no specialized equipment, making it highly suitable for undergraduate instructional labs.
- Physical chemistry experiment,
- Colloid and interfacial chemistry,
- Calcium chloride,
- Surfactant,
- Surface tension
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  Congying Lu , Fei Zhong , Zhenyu Yuan , Shuaibing Li , Jiayao Li , Jiewen Liu , Xianyang Hu , Liqun Sun , Rui Li , Meijuan Hu . Experimental Improvement of Surfactant Interface Chemistry: An Integrated Design for the Fusion of Experiment and Simulation. University Chemistry, 2024, 39(3): 283-293. doi: 10.3866/PKU.DXHX202308097
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  Ruilin Han , Xiaoqi Yan . Comparison of Multiple Function Methods for Fitting Surface Tension and Concentration Curves. University Chemistry, 2024, 39(7): 381-385. doi: 10.3866/PKU.DXHX202311023
3. [3]
  Yukai Jiang , Yihan Wang , Yunkai Zhang , Yunping Wei , Ying Ma , Na Du . Characterization and Phase Diagram of Surfactant Lyotropic Liquid Crystal. University Chemistry, 2024, 39(4): 114-118. doi: 10.3866/PKU.DXHX202309033
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  Youjun Fan , Dandan Cai , Wei Chen , Jianhua Qiu . Exploration and Practice of Ideological and Political Education Reform in Physical Chemistry Experiment. University Chemistry, 2024, 39(4): 119-124. doi: 10.3866/PKU.DXHX202310123
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  Shengyan Yang , Xiangzhen Meng , Xin Wang , Yang Zhang . Construction and Exploration of an Online-Offline Blended “Eight-Link” Teaching Method for Physical Chemistry Experiments Based on OBE Concept. University Chemistry, 2024, 39(11): 28-37. doi: 10.3866/PKU.DXHX202402019
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  Chunai Dai , Yongsheng Han , Luting Yan , Zhen Li , Yingze Cao . Ideological and Political Design of Solid-liquid Contact Angle Measurement Experiment. University Chemistry, 2024, 39(2): 28-33. doi: 10.3866/PKU.DXHX202306065
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  Shuyong Zhang , Shu'e Song . Ideological and Political Case Design of Experiment of Corrosion and Protection Linking with National Major Projects. University Chemistry, 2024, 39(2): 57-60. doi: 10.3866/PKU.DXHX202304078
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  Honglian Liang , Xiaozhe Kuang , Fuping Wang , Yu Chen . Exploration and Practice of Integrating Ideological and Political Education into Physical Chemistry: a Case on Surface Tension and Gibbs Free Energy. University Chemistry, 2024, 39(10): 433-440. doi: 10.12461/PKU.DXHX202405073
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  Yutong Dong , Huiling Xu , Yucheng Zhao , Zexin Zhang , Ying Wang . The Hidden World of Surface Tension and Droplets. University Chemistry, 2024, 39(6): 357-365. doi: 10.3866/PKU.DXHX202312022
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  Houzhen Xiao , Mingyu Wang , Yong Liu , Bangsheng Lao , Lingbin Lu , Minghuai Yu . Course Ideological and Political Design of Combustion Heat Measurement Experiment. University Chemistry, 2024, 39(2): 7-13. doi: 10.3866/PKU.DXHX202310011
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  Yuan Chun , Lijun Yang , Jinyue Yang , Wei Gao . Ideological and Political Design of BZ Oscillatory Reaction Experiment. University Chemistry, 2024, 39(2): 72-76. doi: 10.3866/PKU.DXHX202308072
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  Haiyu Nie , Chenhui Zhang , Fengpei Du . Ideological and Political Design for the Preparation, Characterization and Particle Size Control Experiment of Nanoemulsion. University Chemistry, 2024, 39(2): 41-46. doi: 10.3866/PKU.DXHX202306055
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  Shuying Zhu , Shuting Wu , Ou Zheng . Improvement and Expansion of the Experiment for Determining the Rate Constant of the Saponification Reaction of Ethyl Acetate. University Chemistry, 2024, 39(4): 107-113. doi: 10.3866/PKU.DXHX202310117
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  Yanhui Sun , Junmin Nan , Guozheng Ma , Xiaoxi Zuo , Guoliang Li , Xiaoming Lin . Exploration and Teaching Practice of Ideological and Political Elements in Interface Physical Chemistry: Taking “Additional Pressure on Curved Surfaces” as an Teaching Example. University Chemistry, 2024, 39(11): 20-27. doi: 10.3866/PKU.DXHX202402023
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  Chunai Dai , Yongsheng Han , Luting Yan , Zhen Li , Yingze Cao . Preparation of Superhydrophobic Surfaces and Their Application in Oily Wastewater Treatment: Design of a Comprehensive Physical Chemistry Innovation Experiment. University Chemistry, 2024, 39(2): 34-40. doi: 10.3866/PKU.DXHX202307081
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  Yeyun Zhang , Ling Fan , Yanmei Wang , Zhenfeng Shang . Development and Application of Kinetic Reaction Flasks in Physical Chemistry Experimental Teaching. University Chemistry, 2024, 39(4): 100-106. doi: 10.3866/PKU.DXHX202308044
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  Hongmei Zhao , Ziqiang Lu , Song Li , Xingyu Li , Chengting Zi , Xingli Fan , Xiangdong Qin . Exploration and Practice of Physical Chemistry Teaching under the Guidance of Course Ideological and Political Education. University Chemistry, 2024, 39(3): 210-217. doi: 10.3866/PKU.DXHX202309006
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  Yang Chen , Xiuying Wang , Nengqin Jia . Ideological and Political Design, Blended Teaching Practice of Physical Chemistry Experiment: Pb-Sn Binary Metal Phase Diagram. University Chemistry, 2025, 40(3): 223-229. doi: 10.12461/PKU.DXHX202405184
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  Dexin Tan , Limin Liang , Baoyi Lv , Huiwen Guan , Haicheng Chen , Yanli Wang . Exploring Reverse Teaching Practices in Physical Chemistry Experiment Courses: A Case Study on Chemical Reaction Kinetics. University Chemistry, 2024, 39(11): 79-86. doi: 10.12461/PKU.DXHX202403048
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  Bing Sun . Practice of Ideological and Political Education in Physical Chemistry Courses for Non-Chemistry Majors. University Chemistry, 2024, 39(8): 28-35. doi: 10.3866/PKU.DXHX202311080

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