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

Abstract

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 t_i, peak height Δ_i at t_i and peak area a_i before time t_i. 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

CLC Number:

O642.1

TrendMD:

ZENG Xian-Cheng, CHEN Yong, WANG Qian, MENG Xiang-Guang, QIN Zi-Ming . Time Variable Method of Thermokinetics——Chemical Reactions with Simple Order[J]. Chem. J. Chinese Universities, 1998, 19(11): 1803.

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[3]	QIN Fang-Fang¹, HE Ming-Zhong¹*, CUI Jing-Wei², CHEN Qiang³. Thermokinetics Study on the Deintercalation Reaction of Intercalating Composite Kaolinite/Dimethyl Sulphoxide [J]. Chem. J. Chinese Universities, 2007, 28(12): 2343.
[4]	HUANG Yu-Ping, LIU Yi, SHEN Ping, QU Song-Sheng . Thermokinetic Study on the Growth Process of Halobacterium Halobium [J]. Chem. J. Chinese Universities, 2002, 23(2): 251.
[5]	CHEN Yong, WANG Hai-Dong, LI Yan-Tuan, ZENG Xian-Cheng . Time-parameter Method(Ⅵ) Studies on Thermokinetics for Consecutive First-order Reactions [J]. Chem. J. Chinese Universities, 2001, 22(11): 1852.
[6]	CHEN Yong, JIANG Fu-Bin, XIE Jia-Qing, ZHANG Yuan-Qin, ZENG Xian-Cheng . Timeparameter Method(Ⅳ) Studies on Thermokinetics for Opposite Reaction [J]. Chem. J. Chinese Universities, 1999, 20(6): 928.
[7]	LIU Yi, TAN Xiao-Feng, WANG Cun-Xin, YAN Cheng-Nong, SONG Zhao-Hua, QU Song-Sheng  . Studies on Thermokinetic Method(Ⅱ)——Theory and Method of Flow-mixed Method [J]. Chem. J. Chinese Universities, 1998, 19(6): 938.
[8]	ZHANG Yuan-Qin, ZENG Xian-Cheng, HU Qi-Shan, MENG Xiang-Guang, TIAN An-Min . Analog Thermogram Method(Ⅲ)──Reversible Reactions [J]. Chem. J. Chinese Universities, 1997, 18(8): 1369.
[9]	ZENG Xian-Cheng, MENG Xiang-Guang, ZHANG Yuan-Qin, CHEN Min-Zhu, QIN Zi-Ming, HU Qi-Shan. Research Method for Kinetics of Chemical Reactions ──Self-function Regression Method and Its Applications [J]. Chem. J. Chinese Universities, 1997, 18(4): 581.
[10]	LIANG Yi, WANG Cun-Xin, ZOU Guo-Lin, QU Song-Sheng, WU Yuan-Xin, LI Ding-Huo. Studies of Xanthine Oxidation by Xanthine Oxidase Using Microcalorimetry [J]. Chem. J. Chinese Universities, 1997, 18(4): 586.
[11]	ZHANG Yuan-Qin, HU Qi-Shan, ZENG Xian-Cheng, TIAN An-Min. Analog Thermogram Method(Ⅱ)──Studies on Thermokinetics of Irreversible Consecutive First-order Reactions [J]. Chem. J. Chinese Universities, 1997, 18(3): 463.
[12]	ZENG Xian-Cheng, ZHANG Yuan-Qin, MENG Xiang-Guang, CHEN Min-Zhu, QIN Zi-Ming, HU Qi-Shan. Analog Thermogram Method(Ⅰ)──Chemical Reactions with Simple Order [J]. Chem. J. Chinese Universities, 1996, 17(4): 607.
[13]	XIONG Ya, WU Ding-Quan, ZHOU Guang-Ming, DU Yu-Min, QU Song-Sheng. The Microcalorimetric Studies on the Inhibition Kinetics of Enzyme-catalyzed Reaction──Fluoride Ion Inhibiting Laccase-catalyzed Oxidation Reaction of o-Phenylenediamine [J]. Chem. J. Chinese Universities, 1996, 17(3): 460.
[14]	LIU Jing-Song, ZENG Xian-Cheng, DENG Yu, TIAN An-Min. Thermokinetic Research of Consecutive Quaternizations [J]. Chem. J. Chinese Universities, 1994, 15(8): 1207.
[15]	LIU Jing-Song, ZENG Xian-Cheng, DENG Yu, TIAN An-Min . Thermogram Reconstruction and Its Application to Thermokinetics [J]. Chem. J. Chinese Universities, 1993, 14(6): 853.

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

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