Investigation of Simple and Complex Reaction Kinetics with a Simulated Program by LabVIEW

IF 2.9 3区教育学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Journal of Chemical Education Pub Date : 2025-06-16 DOI:10.1021/acs.jchemed.4c01332

Li Liu, Qiang Fu* and Qingsheng Gao,

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Abstract

A chemical reaction kinetics simulation program was developed to simulate both simple and complex reactions with LabVIEW. In the case of simple reactions, the focus is on the kinetic characteristics of dual-reactant systems with different stoichiometric ratios at initial concentrations. For complex reactions, the characteristics of parallel, consecutive, reversible, and autocatalytic reactions are discussed. The numerical simulations from the program are close to the analytical solutions and can effectively reflect the kinetic characteristics of different types of reactions. The effectiveness of the simulation program in promoting learning was verified by experimental and control groups, and the score rate of the experimental group (89.7%) was significantly higher than that of the control group (66.6%). The results indicate that, with the help of the program, students can better construct the differential equations based on the law of mass action and understand the kinetic plots of different reactions as well as the relationship between the rates of the substance and the chemical reaction.

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用LabVIEW模拟程序研究简单和复杂反应动力学

利用LabVIEW开发了化学反应动力学模拟程序，可以模拟简单和复杂的化学反应。在简单反应的情况下，重点是在初始浓度下具有不同化学计量比的双反应物系统的动力学特性。对于复杂反应，讨论了平行反应、连续反应、可逆反应和自催化反应的特点。程序的数值模拟与解析解接近，能有效反映不同类型反应的动力学特征。通过实验组和对照组验证了模拟程序促进学习的有效性，实验组的得分率（89.7%）显著高于对照组的得分率（66.6%）。结果表明，在该程序的帮助下，学生可以更好地建立基于质量作用定律的微分方程，理解不同反应的动力学图以及物质的速率与化学反应的关系。

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来源期刊

Journal of Chemical Education 化学-化学综合

CiteScore

5.60

自引率

50.00%

发文量

465

审稿时长

6.5 months

期刊介绍： The Journal of Chemical Education is the official journal of the Division of Chemical Education of the American Chemical Society, co-published with the American Chemical Society Publications Division. Launched in 1924, the Journal of Chemical Education is the world’s premier chemical education journal. The Journal publishes peer-reviewed articles and related information as a resource to those in the field of chemical education and to those institutions that serve them. JCE typically addresses chemical content, activities, laboratory experiments, instructional methods, and pedagogies. The Journal serves as a means of communication among people across the world who are interested in the teaching and learning of chemistry. This includes instructors of chemistry from middle school through graduate school, professional staff who support these teaching activities, as well as some scientists in commerce, industry, and government.