Acta Phys. -Chim. Sin. ›› 1997, Vol. 13 ›› Issue (05): 425-431.doi: 10.3866/PKU.WHXB19970508

• ARTICLE • Previous Articles     Next Articles

Titration Calorimetry Applied to the Study of Thermokinetics I.Thermokinetics of First-Order Reactions

Wang Cun-Xin,Liang Yi,Wang Wen-Qing,Song Zhao-Hua,Liu Yu-Wen,Qu Song-Sheng   

  1. Departmetn of Chemistry,Wuhan University,Wuhan 430072
  • Received:1996-10-28 Revised:1997-01-13 Published:1997-05-15
  • Contact: Liang Yi


The mathematical models for thermokinetics of first-order reactions in titration period and in the stopped-titration reaction period have been suggested, respectively, by titration calorimetry. By analyzing the titration calorimetric curve of one experiment of a reaction, these two models can be used to calculate the first-order rate constant (k1) and the molar enthalpy(△rHm) of the reaction. Thermokinetics of the saponification of ethyl acetate in doubly distilled water was studied by titration calorimetry. The reliability of this titration calorimetric method for studying thermokinetics of first-order reactions has been verified by the experimental results obtained.

Key words: Titration calorimetry, First-order reaction, Thermokinetics