简单级数反应的半寿期法  

HALF-LIFE TIME METHOD FOR SIMPLE ORDER REACTION

作　　者：蒋福宾[1] 陈勇[2] 陈彤[3] 曾宪诚[2] 

机构地区：[1]广西大学化学化工学院,南宁530004 [2]四川大学化学学院,成都610064 [3]贵阳中医学院药学系,贵阳550002

出　　处：《四川大学学报（自然科学版）》2000年第3期420-425,共6页Journal of Sichuan University(Natural Science Edition)

基　　金：国家自然科学基金!(2 98730 31)

摘　　要：根据热动力学基本理论 ,建立了简单级数反应热动力学对比参量方程 ,提出了一种确定反应速率常数的方法——半寿期法 .该法只需要特征时间参量 tm 及相应的热谱数据便可方便地计算化学反应的半寿期和速率常数 .通过几个简单级数反应体系的热动力学研究 ,验证了半寿期法的正确性 .According to the theoretical basis of thermokinetics and chemical kinetics,the thermokinetic reducedparameter equation for simple order reaction has been derived and a novel thermokinetic method for determining the rate constant,the halflife time method has been proposed in this paper.This method only needs the characteristic data(t m and Φ m) of one thermoanalytical curve and conveniently calculates the halflife times and the rate constants of studied reaction systems.In order to test the validity of this method,several reaction systems with simple order have been studied.The experimental results indicate that the halflife time method for simple order reaction is correct.

关 键 词：热动力学 半寿期 简单级数反应 化学反应动力学 

分 类 号：O643.1[理学—物理化学]