高等学校化学学报 ›› 1998, Vol. 19 ›› Issue (11): 1803.

• 论文 • 上一篇    下一篇

热动力学时间变量法——简单级数化学反应

曾宪诚, 陈勇, 王茜, 孟祥光, 秦自明   

  1. 四川大学化学系, 成都, 610064
  • 收稿日期:1997-10-13 出版日期:1998-11-24 发布日期:1998-11-24
  • 通讯作者: 曾宪诚.男,59岁,教授.
  • 作者简介:曾宪诚.男,59岁,教授.
  • 基金资助:

    国家自然科学基金(批准号:29273115)资助课题.

Time Variable Method of Thermokinetics——Chemical Reactions with Simple Order

ZENG Xian-Cheng, CHEN Yong, WANG Qian, MENG Xiang-Guang, QIN Zi-Ming   

  1. Department of Chemistry, Sichuan University, Chengdu, 610064
  • Received:1997-10-13 Online:1998-11-24 Published:1998-11-24

摘要: 在热动力学理论基础上提出了一种新的热动力学研究法--时间变量法.该法无须将反应进行到底,只需知道一张热谱图上的3个时间点t,t时刻峰高△和t前峰面积a,就可用计算机数值方法求算反应的速率常数.应用该法研究了一级反应、等浓度二级反应、不等浓度二级反应、三级反应和1.5级反应的热动力学.

关键词: 热动力学, 热动力学研究法, 时间变量法, 简单级数化学反应

Abstract: On the theoretical basis of thermokinetics proposed in previous articles, a novel thermokinetic research method——time variable method, has been proposed in this paper. The method only needs three time points ti, peak height Δi at ti and peak area ai before time ti. It does not require the thermokinetic reaction to be completed. The rate constants were obtained by data processing on computer. In order to test the correctness of the method, first-order reaction, second-order reactions(with equal concentrations and unequal concentrations, respectively), third-order reaction, 1.5-order reaction have been studied. The rate constants are quite in agreement with those in literature. Time variable method is believed to be correct.

Key words: Thermokinetics, Thermokinetic research method, Time variable method, Chemical reactions with simple order

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