热动力学的研究(Ⅷ)——不等浓度二级反应的热动力学研究法

STUDIES ON THERMOKINETICS (VIII)——THERMOKINETIC METHOD FOR SECOND-ORDER REACTIONS WITH UNEQUAL CONCENTRATIONS

研究了反应物初始浓度比r等于5的不等浓度二级反应的热动力学.计算了相应的无量纲参数的函数值,讨论了不同r值的应用范围和r值对函数表差的影响等.还用该法对苯甲酸乙酯的皂化反应进行了热动力学研究.

On the theoretical basis of thermokinetics pro-osed in literatures [l] and [2], the thermo-kinetic method for second-orde reactions in which ratio of initial concentrations equals 5 was derived in this paper. The values of relevant functions of dimensionless parameters were calculated. The applied limits for distinct values of r and the influence of r on the tablediffeience were discussed.This method has been used to study the Saponification of ethyl benzoate in '50%' aqueous alcohol solvent at 25C. The rate constants calculated with this method were in agreement with The values in literature.