物理化学学报 >> 1993, Vol. 9 >> Issue (04): 509-515.doi: 10.3866/PKU.WHXB19930416

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热动力学对比进度法 I. 可逆反应热动力学模型

刘劲松; 曾宪诚; 田安民; 邓郁   

  1. 四川大学化学系，成都 610064
  • 收稿日期:1992-01-13 修回日期:1992-07-07 发布日期:1993-08-15
  • 通讯作者: 曾宪诚

Reduced Extent Method Forthermokinetics I. Thermokineticmodels of Reversible Reaction

Liu Jin-Song; Zeng Xian-Cheng; Tian An-Min; Deng Yu   

  1. Department of Chemistry, Sichuan University, Chengdu 610064
  • Received:1992-01-13 Revised:1992-07-07 Published:1993-08-15
  • Contact: Zeng Xian-Cheng

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摘要： 引入“对比进度”的概念, 建立了可逆反应动力学新的数学模型, 提出了可逆反应动力学的对比进度研究法. 并用热导式自动热量计研究了一个可逆反应体系, 计算结果与文献值符合甚好, 验证了数学模型及对比进度法的正确性.

关键词: 可逆反应, 热动力学, 对比进度, 数学模型, 量热法

Abstract: A new concept, reduced extent of reaction, is introduced in this paper. Some new mathematical models of reversible reaction kinetics are suggested, and a reduced extent method for study of the thermokinetics of reversible reaction is proposed. A reversible reaction system, tris(hydroxymethyl) aminomethane with nitroethane in water(μ=1.0), has been studied with this method at 30.0 ℃. Rate constants and equilibrium constant calculated with this model are in fair agreement with that given in the literature. Thus, the correctness of the models and the validity of this method are proved.

Key words: Reversible reaction, Thermokinetics, Reduced extent of reaction, Mathematical model, Calorimetry