摘要
首先强调了范氏方程是气液系统的状态方程,范氏方程可以很好地说明物质气态和液态的相互转变.分析了焦-汤效应,简述了气体的液化与低温的获得.
First of all, the significant historic position of van der Waals equation is commented. Using van der Waals molecular model for gas-liquid states, the deviation of two ideal gas laws, the characteristics of gas-liquid transition and the theorem of corresponding state are analysed premarily. Liquefaction of gas and low temperature techniques are presented briefly and the significance in low temperature physics and theory of phase transition are emphasized.
出处
《大学物理》
北大核心
2005年第10期15-20,共6页
College Physics
关键词
范氏方程
理想气体
焦-汤效应
低温技术
气液相变
van der Waals state equation
Boyle＇ s law
Joule-Thomson effect
gas-liquid transition.
theorem of corresponding state
low temperature technique
