摘要
针对目前"化学反应摩尔焓变"实验教学中存在的问题,对量热计的加料装置进行了改进,并用同电脑可连接的温度测量仪测量、记录体系温度变化,并将实验数据导入Origin制图,减少了人为的误差,提高了实验的精确度,结果表明:实验相对误差小于0.5%。
The problem which existed in the measurement of chemical reaction molar enthalpy was solved by the improvement of calorimeter.The electrical thermometer connected with the computer was used to record the changes of system temperature.The experimental data were saved as txt file.The file was imported by origin and drawn to reduce the errors made by human.The result showed that the relative error was less than 0.5%.
出处
《广州化工》
CAS
2015年第6期207-208,233,共3页
GuangZhou Chemical Industry
关键词
量热计
焓变
Origin
calorimeter
enthalpy
origin
