热动力学对比进度法——Ⅴ.连续一级反应的热动力学研究法

Reduced Extent Method for Thermokinetics Ⅴ. Thermokinetic Research Method for Consecutive First Order Reactions

本文导出了连续一级反应动力学和热动力学的对比进度方程、建立了连续一级反应热动力学的数学模型 根据该模型,可由一次实验的热谱数据同时解析出两步反应的速率常数和摩尔反应焓.采用热导式热量计研究了己二酸二乙酯皂化反应的热动力学,实验结果验证了本文热动力学模型的正确性.

Reduced extent equations for chemical kinetics and thermokinetics of consecutive first order reactions have been deduced and mathematical model for thermokinetics of consecutive first order reactions has been suggested, which can be used to calculate both rate constants and molar enthalpies of two steps simultaneously with thermogram data from asingle experiment. Thermokinetics of the saponification of diethyl adipate was studied with a conduction calorimeter and the validation of the thermokinetic model in this paper has been verified by the experimental results.