利用归一化条件求分子射线中分子速率分布函数  

Using Normalized Conditions Get Molecular Speed Distribution Function in the Molecular Ray

作　　者：王礼平[1] 

机构地区：[1]中南民族学院物理系

出　　处：《中南民族学院学报（自然科学版）》2001年第4期45-47,共3页Journal of South-Central University for Nationalities(Natural Sciences)

摘　　要：给出了导得分子射线中分子速率分布函数的一种简捷方法 .该方法首先利用麦克斯韦速度分布函数的分量式求出气体分子单位时间内碰撞单位面积器壁的分子数 NC,再由碰撞分子的速率分布函数 fc(V)的归一化条件写出 NC 的表达式 ,比较得出碰撞分子的速率分布函数 fc(V)就是分子射线中分子的速率分布函数 fm(V) .并由此求出分子射线中分子的平均速率。This paper gives a short cut method to derive from molecular speed distribution function in the molecular ray. First it makes use of componentwise for Maxwell velocity distribution function , determines number of the molecule that gases molecular come into collision with unit area walls in the unit time and writes N c 's expression from normalized conditions of collision molecular speed distribution function f c(V) , compares and gets collision molecular speed distribution function f c(V) . Finally it points out that the f c(V) is molecular speed distribution function f m(V) of the molecular ray. From this determines average speed , quadratic mean square root speed and most probable probability speed of the molecular in the molecular ray.

关 键 词：归一化条件 分子射线 速率分布函数 速率分布函数 气体分子 

分 类 号：O552.3[理学—热学与物质分子运动论]