利用智能手机外接温度传感器改进中和热的测定实验  

Improvement of Neutralization Heat Measurement Experiment by Using Smart Phone External Temperature Sensor

作　　者：任动 倪刚[1] 温宁红 吴晓红[1] Ren Dong;Ni Gang;Wen Ninghong;Wu Xiaohong(College of Chemistry and Chemical Engineering,Ningxia University,Yinchuan 750021,China)

机构地区：[1]宁夏大学化学化工学院

出　　处：《广东化工》2019年第23期126-127,135,共3页Guangdong Chemical Industry

基　　金：宁夏回族自治区研究生教育创新计划项目(YCK201608;YXW2016);宁夏高等学校一流学科建设资助项目(NXYLXK2017A04);宁夏大学化学(教师教育)一流专业建设项目

摘　　要：利用智能手机外接温度传感器对中和热测定实验进行改进,利用实时检测功能,在手机界面上直接绘制温度变化数据曲线,可以便捷、直观地反映中和反应过程中温度变化,快速实现中和热的测定。对酸碱浓度、体积等实验条件探究,初步推出实验中NaOH和HCl的最佳浓度和体积。The experiment of neutralization heat measurement is improved by using smart phone external temperature sensor, and t he data curve of temperature change is drawn directly on the interface of mobile phone with real-time detection function. The temperature change in neutralization reaction can be reflected conveniently and intuitively, and the measurement of neutralization heat can be realized quickly. The optimum concentration and volume of NaOH and HCl in the experiment were preliminarily deduced by exploring the experimental conditions such as acid-base concentration and volume.

关 键 词：智能手机 温度传感器 中和热 酸碱浓度 酸碱体积 

分 类 号：TQ[化学工程]