Teaching and Learning Dialectical Relationship between Thermodynamic Equilibrium and Reaction Rate Constant
Tao Jin
School of Environmental Science and Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong 250100, ChinaFan-Mei Kong
College of Earth Science and Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266590, China,Bao-Yin Yan
Teaching Department of Basic Courses Shandong Agriculture and Engineering University, Jinan, Shandong 250100, ChinaGui-Zhai Zhang
School of Environmental Science and Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong 250100, ChinaQing Liu
School of Environmental Science and Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong 250100, ChinaQiu-Yue He
School of Environmental Science and Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong 250100, ChinaXiao-Yan Zhou
School of Environmental Science and Engineering, Shandong Agriculture and Engineering University, Jinan, Shandong 250100, ChinaAbstract
The development of science and technology in the present era has an urgent demand for the training of innovative thinking of undergraduates. This requirement actively promotes research and teaching of basic theories, beneficial to the career development of students. This study clarified the dialectical relation between thermodynamic equilibrium constant and reaction rate constant through the contrast thinking method. Findings reveal that both isobaric Van't Hoff equation and Arrhenius equation had four similar forms, and the change in the trend of both constants showed a similar law. By the derivation of the formation rate constant of product (KY) and the consumption rate constant of the reactant (KA), the ratio of both constants at the end state indicated the nature of equilibrium state in agreement with that of thermodynamic equilibrium constant (). This study has thus presented that the thermodynamic equilibrium constant contained the characteristics of microscopic dynamics based on the analysis of the reaction mechanism, and both constants are organically connected and unified. The reaction enthalpy and activation energy are closely related to each other with the same connotation.