Volume 26 Issue 4
Apr.  2000
Turn off MathJax
Article Contents
ZHANG Jing-bai, LI Chun-xuan. Steric Effects in Rate Constants for Bimolecular Dissociation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(4): 416-419. (in Chinese)
Citation: ZHANG Jing-bai, LI Chun-xuan. Steric Effects in Rate Constants for Bimolecular Dissociation[J]. Journal of Beijing University of Aeronautics and Astronautics, 2000, 26(4): 416-419. (in Chinese)

Steric Effects in Rate Constants for Bimolecular Dissociation

  • Received Date: 08 Mar 1999
  • Publish Date: 30 Apr 2000
  • The steric effects for bimolecular dissociation were investigated via the collision theory, and a sterically dependent bimolecular dissociation model was established. In order to validate the developed model, the rate constants of typical reactions taken place in air under thermal equilibrium condition were then calculated based on the new model, and were compared with the results obtained by the classical collision theory, as well as the available experimental data. As shown by the Arrhenius plots presented in this paper that the new model would provide more accurate results than the classical collision theory, when compared with the experimental data. The plots also depict some exceptional cases in the reactions of N2+N and O2+O, where there are discrepancies among the theoretical and experimental data. These discrepancies are also discussed in the present paper.

     

  • loading
  • [1] Dunn M G, Kang S W. Theoretical and experimental studies of reentry plasmas . NASA CR-2232, 1973. [2]Park C. A review of reaction rates in high temperature air . AIAA Paper 89-1704, 1989. [3]宋世谟,香雅正.化学反应速率理论[M].北京:高等教育出版社,1990. [4]韩德刚,高盘良.化学动力学基础[M].北京:北京大学出版社,1987. [5]Bird G A. Simulation of multi-dimensional and chemically reacting flows . In:Campargue R, ed. Rarefied Gas Dynamics 11 . Paris:CEA, 1978. 365~388. [6]Bird G A. Molecular gas dynamics and the direct simulation of gas flows . Oxford:Clarendon Press, 1994. [7]Fan J, Shen C. A sterically dependent chemical reaction molde . In:Harvey J, Lord G, eds. Rarefied Gas Dynamics 19, vol 1 . Oxford:Oxford Univ Press, 1995.448~454. [8]Herzberg G. Spectra of diatomic molecules[M]. New York:Van Nostrand, 1953. [9]Koura K, Matsumoto H. Variable soft sphere molecular model for air species[J]. Phys Fluids A, 1992,4(5):1083~1085. [10] Appleton J P, Steinberg M, Liquornik D J. Shock tube study of nitrogen dissociation using vacuum-ultraviolet light absorption[J].J Chem Phys,1968, 48(1):599~608. [11]Roth P, Thielen K. Measurements on N atom concentrations in dissociation of N2 by shock waves . In:Bershader D, Hanson R, eds. Shock Waves and Shock Tubes 15 . Stanford:Stanford Univ Press, 1986.245~252.
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views(3627) PDF downloads(278) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return