蔗糖的转化实验是基础物理化学实验的基本内容之一,该实验要测定蔗糖水解反应速度常数,而反应速度常数随温度的变化而改变。以前学生在室温条件下进行实验时,从开始到结束室温变化较大,加上旋光仪镇流器的发热影响,因此测得的反应速度常数只能作为某一温度范围内的平均值,而且每次实验室温也不同,各组学生所得数据相异,造成对学生实验结果评定的困难。为此,我们对仪器稍作了改进,並用改进了的仪器,求出反应速度常数与 Sucrose conversion experiment is one of the basic elements of basic physical and chemical experiments, the experiment to determine the sucrose hydrolysis reaction rate constant, and the reaction rate constant changes with temperature changes. Previous students at room temperature when the experiment, starting from the beginning to the end of a large temperature change, coupled with the polarimeter ballast fever, the measured reaction rate constant can only be used as an average temperature range, and Each laboratory temperature is also different, the data obtained in different groups of students vary, resulting in difficulty in assessing the students experimental results. To this end, we made a slight improvement on the instrument, and with the improved instrument, find the reaction rate constant and