仿真模拟技术在化学平衡实验教学的研究

Study on Simulation Technology in Chemical Equilibrium Experimental Teaching

化学仿真模拟技术是利用计算机程序和应用来对客观物质、化学反应进程、状态等进行的模拟计算,是一种全新的实验手段。该文将化学平衡仿真模拟技术应用于化学基础实验中液相反应平衡的实验教学,针对铁离子与硫氰酸根离子化学平衡实验教学,对分配系数图、离子活度图、组分溶解度图以及双影响因子下的组分稳定平衡相图进行动态模拟,对学生更进一步直观地理解化学平衡提供了很大帮助;同时有助于确定反应物最佳实验浓度,对教学实验中实验方案的优化有一定的实际应用指导意义。

Chemical simulation technology is a new experimental method that utilizes computer programs and applications to simulate and calculate objective substances,chemical reaction processes and status.In this paper,chemical equilibrium simulation technology is applied to the experimental teaching of liquid phase reaction equilibrium in chemical basic experiments.Taking the chemical equilibrium experimental teaching of iron ions and thiocyanate ions as an example,the distribution coefficient diagram,ion activity diagram,component solubility diagram and component stable equilibrium phase diagram under double influence factors are simulated dynamically,which provides great help for students to further understand the chemical equilibrium visually.At the same time,it is helpful to determine the optimal experimental concentration of reactants and has certain practical guiding significance for the optimization of an experimental scheme in a teaching experiment.