高中化学实验创新设计—中和反应热的测定

Innovative Chemical Experiment of High School-The Neutralization Rreaction Heat Measurement

针对中和反应热测定存在的不足提出了改良保温装置(用杜瓦瓶代替烧杯)、测量方法(用传感技术代替温度计)和数据处理方法(Origin软件作图法的使用)的实验方案,并通过实验分析了改进后的方案数据。证实了改进后的保温装置保温效果更好,实验测定值的误差在中学阶段做中和热测量实验的允许范围之内,更接近理论值。

Aiming at the shortcomings of the neutralization reaction heat measurement is put forward improved insulation device （ using.dewar bottle instead of a beaker） , measuring method （ with sensor technology to replace the thermometer） and data processing method （ Origin drawing method） of experimental scheme, and the improved scheme is analyzed through experiment data. Confirmed the improved heating device heat effect is better, the experimental error of the measured value neutralization heat measurement experiment in permission scope, and closer to the theoretical value.