气体扩散方程解析解及在测定分子间势能的应用

Analytical Solution of Gas Diffusion Equation and Application of Measuring the Value of Intermolecular Interaction Potential

设计了一新颖的分子动理论实验装置,根据求解在约束条件下的气体扩散方程的解析解和气体分子在升华时会对容器底部产生作用力的特点,设计了一种新颖简单的实验器材来测量分子间相互作用的势能,其实验曲线符合理论数据,误差分析后的补偿曲线所得结果可较为精确地与理论结果吻合。本实验常温下即可进行,且精度较高,适合快速材料性质测定及大学物理教学,以解决大学物理演示实验课关于学气体动理论的实验数量较少,且往往只涉及对热学微观过程的宏观模拟,而很少涉及气体动理论的实验,导致学生学习不够深入的问题。有利于学生对分子运动学问题的深入探索。

Designed a original method of measuring the value of intermolecular interaction potential a with simple instruments based on the analytical solution of gas equation. According to the theory of momentum conservation. We design the experiment which can be done at room temperature and can be applied to lecturing. And this can solve the problem of the lack of gas dynamic theory experiment in the college physics class.