甲烷在稀有气体中输运性质的理论研究

Theoretical Research of Transport Properties of Binary Mixtures of Methane with Noble Gases

本文利用 Tang-Toennies 势模型计算了理论上难以处理的甲烷与稀有气体原子间的相互作用势.其中部分色散分数用 pade 似和组合规则来确定,Born-Mayer参数利用已知的色散系数和势阱位置来确定。在此基础上,我们计算了甲烷在稀有气体中的输运性质。最后分析了气体的不同输运性质与原子分子相互作用势的不同部分的关系。

The authors calculate the interaction potentials between methane and noble gaseous atoms which are difficult to treat theoretically.Some dispersion coefficients are determined by combining the results of Pade Approximation and the combing rules.On the basis of these the trnsport properties of binary mixtures of methan with noble gases are calculated.Finally,from the point view of atomic and molecular physics,we point out that the different transport properties of binary mixtuies are related to the different parts of the interaction potential of corresponding systems.