高等学校化学学报 ›› 1999, Vol. 20 ›› Issue (6): 928.

• 论文 • 上一篇    下一篇

时间参量法(Ⅳ)──对峙反应的热动力学研究

陈勇, 蒋福宾, 谢家庆, 张元勤, 曾宪诚   

  1. 四川大学化学系, 成都 610064
  • 收稿日期:1998-04-22 出版日期:1999-06-24 发布日期:1999-06-24
  • 通讯作者: 曾宪诚
  • 作者简介:陈勇,男,33岁,博士.
  • 基金资助:

    国家自然科学基金

Timeparameter Method(Ⅳ) Studies on Thermokinetics for Opposite Reaction

CHEN Yong, JIANG Fu-Bin, XIE Jia-Qing, ZHANG Yuan-Qin, ZENG Xian-Cheng   

  1. Department of Chemistry, Sichuan University, Chengdu, 610064
  • Received:1998-04-22 Online:1999-06-24 Published:1999-06-24

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.

关键词: 热动力学, 热动力学研究法, 时间参量法, 对峙反应

Abstract: According to the theoretical basis of thermokinetics and the general kinetic equation of opposite reaction, a novel thermokinetic research method, time-parameter 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 proton-transfer 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.

Key words: Thermokinetics, Thermokinetic research method, Time-parameter method, Opposite reaction

中图分类号: 

TrendMD: