时间参量法(Ⅳ)──对峙反应的热动力学研究  

Timeparameter Method() Studies on Thermokinetics for Opposite Reaction

作　　者：陈勇[1,2,3] 蒋福宾[1,2,3] 谢家庆[1,2,3] 张元勤 曾宪诚[1,2,3] 

机构地区：[1]四川大学化学系 [2]广西大学化学化工学院 [3]自贡师范高等专科学校化学系

出　　处：《高等学校化学学报》1999年第6期928-932,共5页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：根据热动力学基本理论和对峙反应的通用微分动力学方程，将时间作为已知参量，建立了对峙反应热动力学时间参量法的数学模型，并利用该法分别研究了硝基乙烷与氨和三（羟甲基）氨基甲烷反应的热动力学．According to the theoretical basis of thermokinetics and the general kinetic equation of opposite reaction, a novel thermokinetic research method, timeparameter method for opposite reaction, was proposed in this paper. The rate constants of forward and backward reactions and equilibrium constant can be calculated from the same thermoanalytical curve simultaneously with this method. In order to test the validity of this method, the protontransfer reactions of nitroethane with ammonia at 15 and 25 , and with hydroxymethyl aminomethane(Tris) at 15 and 30 have been studied, respectively. The results of rate constants and equilibrium constants calculated by using this method are in agreement with those in literatures.

关 键 词：热动力学 时间参量法 对峙反应 硝基乙烷 三(羟甲基)氨基乙烷 

分 类 号：O643.1[理学—物理化学] O623.6[理学—化学]