Chem. J. Chinese Universities ›› 1998, Vol. 19 ›› Issue (11): 1803.

• Articles • Previous Articles     Next Articles

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

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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