理想气体中的内势能

THE INNER POTENTIAL ENERGY OF IDEAL GAS

本文证明在无壁空间或无束缚力约束空间中,压力是气体以物态存在的束缚力。证明了热力学压力不仅是动量交换的统计平均值的量度,而且也是分子或原子空间位置分布(密度)的表征。理想气体在有限空间中的统计构形空间,具有逸散势-pV。这种系统构形空间内的各能级粒子具有相应的动量空间分布,其统计构形空间具有无序势TS。热力学平衡态具有处处相等p、T和总势能TS-pV。理想气体的二种势能具有对称性,总势能等于零;但其相应的无序势和逸散势都不等于零。

This paper proves that the pressure is a restrictive force to keep gas matter state in wall-free or un-confining space, as well as is not only a statistic average measurement of momentum exchange but also a character of particles position distribution. The statistic configuration space of ideal gases in finite physic space holds escaping potential energy-pV. There is a corresponding momentum space distribution of different energy level in above-mentioned configuration space of system that has a statistic momentum configuration space holding disorder potential energy TS. The thermodynamic equilibrium state must keep invariable of pressure, temperature and total potential energy. Due to symmetry of two kinds of potential energy for ideal gases the total potential energy always equals to zero, but the escape and disorder potential energy of system can＇t vanish.