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Brusselator的化学亲合势及熵产生的振荡
引用本文:高执棣,李明成,刘君利.Brusselator的化学亲合势及熵产生的振荡[J].物理化学学报,1992,8(6):824-828.
作者姓名:高执棣  李明成  刘君利
作者单位:Department of Chemistry, Peking University, Beijing 100871
摘    要:迄今为止,化学振荡的研究主要限于描述物质浓度的振荡,有关热力学量的振荡报导极少.这可能是由于振荡机理(或模型)中的热力学量无法确定的缘故.我们采用将标准化学亲合势作为可调参数的方法,并依据非平衡态热力学理论中热力学量与物质的浓度关系,使得热力学量振荡的研究变为现实.本文用计算机数值计算,得出了开放系Brusseltor各元反应的反应速率、化学亲合势及体系熵产生随时间的变化行为,展示了它们的振荡特征。

关 键 词:振荡  化学亲合势  熵产生  
收稿时间:1991-07-23
修稿时间:1992-07-17

THE OSCILLATION OF CHEMICAL AFFINITY AND ENTROPY PRODUCTION OF THE BRUSSELATOR
Gao Zhidi,Li Mingcheng,Liu Junli.THE OSCILLATION OF CHEMICAL AFFINITY AND ENTROPY PRODUCTION OF THE BRUSSELATOR[J].Acta Physico-Chimica Sinica,1992,8(6):824-828.
Authors:Gao Zhidi  Li Mingcheng  Liu Junli
Institution:Department of Chemistry, Peking University, Beijing 100871
Abstract:The time variation of chemical affinities A_p and entropy production ? of an open Brusselator system has been studied. It was found that the oscillating characteristics of A_p and ? are quite different. While A_p oscillations with a single peak in every period, ? has either a single peak or two-peak oscillations which depend on the kinetic mechanism of oscillation or values of A_p~?. The meaning to study oscillation of thermodynamic quantities was also discussed.
Keywords:Oscillation  Chemical affinity  Entropy production
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