基础实验题A:液体的热学量测量  

Measuring the calorific values of liquid

作　　者：高文莉[1] 龚国斌[1] 苏为宁[1] 周进[1] 万建国 GAO Wen-li;GONG Guo-bing;SU Wei-ning;ZHOU Jin;WAN Jian-guo(School of Physics,Nanjing University,Nanjing 210093,China)

机构地区：[1]南京大学物理学院,江苏南京210093

出　　处：《物理实验》2018年第9期33-37,共5页Physics Experimentation

摘　　要：介绍了第4届全国大学生物理实验竞赛基础性实验试题A的实验内容、参考解答以及竞赛结果的分析.实验包括3方面:用冷却法测量液体样品的比热容,测量给定样品材料的熔解热,测量液体不同温度下的表面张力系数.将3个热学量的测量巧妙地结合在一起作为大学生竞赛试题,要求考生采用常规的实验器材测量常规的热学物理量,同时又在常规实验的基础上进行了适当的提高,该试题比较全面地考察了考生的基础理论知识、基本物理仪器的使用能力和数据分析处理能力.The experiment content,solutions and result analysis of the fundamental test problems of the fourth National College Students＇ Physics Experiment Competition,were given.It contained measuring specific heat capacity,the heat of fusion of solid,and the surface tension coefficient of liquid.Three thermal physical quantities were neatly put together to form the college competition questions.The conventional thermal physical quantities were measured with conventional experimental equipment.At the same time the requirements were enhanced on the basis of the conventional experiments,and the basic theoretical knowledge,basic physics instruments and data processing ability and other basic experimental skills were investigated.

关 键 词：比热容 熔解热 表面张力系数 

分 类 号：O552.42[理学—热学与物质分子运动论]