数值法确定化学反应速度常数(Ⅰ)——数值法求曲线斜率的方法

CALCULATION OF CHEMICAL REACTION RETE CONSTANTS——Calculating slope of curve by numerical method

本文介绍一种数值法求曲线斜率的方法。在由实验所得的曲线(f(x))上任意点M两侧以△X间距取点,求得△f(x)/△X,然后以△f(x)/△X对△X作图,得一平滑曲线,当△X=0时所对应的△f(x)/△X即为M点的斜率,该方法计算简便相对误差<1％。

A accurate method for calculating slopes of curves has been recommended in this pa-per. In order to test the validity of this method, the slopes of the cueve of Maxwell's equa-tion of the distribution of molecular velocities have been calculated. The calculated results are in agreement with theory values within 1 % error.