Abstract In basic chemistry teaching for high school chemistry and university general chemistry,the introduction of empirical equilibrium constant based on the chemical reaction rate and the introduction of standard equilibrium constant based on the chemical thermodynamics are two common approaches. These two kinds of equilibrium constants are essentially the same though the former is usually specific and vivid, and the latter is a bit abstract to the students. However, the empirical equilibrium constant is relatively complicated because of its various forms and different dimensions. The standard equilibrium constant is strict, regular and unique, and it reflects that great truths are always simple. It is suggested to understand and summarize chemical equilibrium and equilibrium constant more from the chemical thermodynamics in teaching, and to use standard equilibrium constant as uniformly as possible in quantitative calculations.
YU Jin-Hua, FANG Wen-Jun, LI Gang. Some Arguments on Understanding of Chemical Equilibrium Constants in Basic Chemistry Teaching[J]. Chinese Journal of Chemical Education, 2021, 42(19): 102-105.
