经典一维非谐振子系统的热容量  

The Heat Capacity of System of Classical One-dimensional Non-linear Oscillators

作　　者：郭鸿钧[1] 

机构地区：[1]韩山师范学院物理与电子工程系,广东潮州521041

出　　处：《韩山师范学院学报》2005年第6期27-29,48,共4页Journal of Hanshan Normal University

摘　　要：讨论了非简谐振动对经典一维振子系统内能和热容量的影响,得到该影响的一级修 正表达式．并以氢分子系统为例,利用Morse势能函数进行具体讨论．结果表明,对于一维非 谐振子系统,在讨论系统的内能、熵、热容量等一些与温度有关的热力学性质的问题时,若 涉及的温度较低,这时可近似地用简谐理论处理;若温度较高,则应考虑非简谐效应．The influence of the nonlinearity oi classical one-（llmenslonal oscillators on near capacity is discussed. As an example, this influence for hydrogen gas was evaluated up to first order correction. The result shows that, for classical one-dimensional nonlinear vibration system, when quantities related to temperature such as internal energy, free energy, entropy, heat capacity are discussed at very high temperature, the effects of the nonlinearity of vibration can not. be ignored.

关 键 词：经典 一维 非谐振动 氢分子系统 热容量 

分 类 号：O413[理学—理论物理]