摘要
热容是用以衡量物质所包含热量的物理量,是材料的一个重要的物理性质,体现了材料吸收热能使之转化成内能的能力,在生产实践中有着非常广泛的应用.系统总结代换法、复合函数求导法和雅可比行列式法三种简便易行的热容差计算方法,并以电学系统为例探讨了三种方法的具体应用,分析了这些计算方法的优势.
Heat capacity is an important physical quantity used to measure the heat contained in a material,and it reflects the ability to absorb heat energy and convert heat into internal energy of the materials.In the practical application,the heat capacity difference under different conditions often needs to be decided.This article summarized the three simple methods,such as substitution method,complex function derivation method and Jacobian determinant method,to calculate the heat capacity difference for the simple fluid system,the dielectric system and the magnetic media system.The applications of three methods in common thermodynamic systems are also introduced in order to deepen the understanding the heat capacity difference.
作者
蒋龙
裴启明
Jiang Long;Pei Qiming(School of Physics and Optoelectronic Engineering,Yangtze University,Jingzhou Hubei 434023,China)
出处
《曲靖师范学院学报》
2019年第6期26-28,89,共4页
Journal of Qujing Normal University
基金
2017年湖北省高等学校教学研究项目“多维度立体化热力学与统计物理课程群的建设研究”(2017292)
关键词
热容
系统
计算
应用
heat capacity
system
calculation
application
