重力场中分子速度分布规律的研究

Study on Distributing Regulation of Molecular Speed in the Gravitational Field

理想气体分子在重力场中按动量(或速度)的分布和按空间位置的分布同时受到两种对立作用的影响.热运动的无规性及分子间的碰撞是系统达到平衡态建立确定的统计分布的物理基础.通过论证可以得到以下结论;在平衡态,气体分子按速度的分布不受重力影响.重力场只引起分子数在不同高度的差异,分子速度分布的规律与重力场的存在与否无关.

In the gravitational field, ideal gas molecules are affected simultaneously by two opposite effects in terms of momentum （or speed）distribution and spatial position distribution. The irregularity of thermal motion and the collision of molecules are the physical foundation for the system to reach an equilibrium state and to set up a fixed statistical distribution. Through verification, we arrive at the following conclusions：In the equilibrium state, gas molecules are not affected by gravity in terms of speed distribution. The gravitational field only causes the difference of the number of molecules at different heights, and the distributive regulation of molecular speed has nothing to do with the existence of the gravitational field.