建立了滴定热量计滴定期一级反应热动力学的精确数学模型,并在此基础上探讨了热滞后对此模型的影响.经过改进的模型大大提高了利用滴定热量计获取动力学数据的准确度,且扩大了滴定热量计研究的一级反应体系的范围,使其适用反应的半衰期可以小至十几秒.本文采用此模型,研究了去离子水溶剂中乙酸乙酯皂化反应的热动力学,实验结果验证了该模型研究一级反应热动力学的适用性. The accurate mathematical model of titration thermodynamic first-order reaction kinetics was established, and on this basis, the influence of thermal hysteresis on the model was discussed.The improved model greatly enhanced the accuracy of obtaining kinetic data by titration calorimeter Degree, and expand the scope of the first-order reaction system of the titration calorimeter to make it suitable for the reaction half-life can be as small as ten seconds.In this paper, the thermal kinetics of the ethyl acetate saponification reaction in deionized water solvent The experimental results verify the applicability of this model in the study of first order reaction thermodynamics.