The classical adiabatic constancy of PVg for an ideal gas as a quantum mechanical occurrence

International Journal of Physical Sciences

Tolga Yarman¹ 

关键词: Adiabatic transformation;    quantum mechanics;    kinetic theory of gases.;   

DOI  :  

学科分类：物理（综合）

来源: Academic Journals

【 摘 要 】

In this paper we find a connection between the long lasting macroscopic classical laws of gases and the quantum mechanical description of non-interacting particles confined in a box, thus constituting an ideal gas. In such a gas, the motion of each individual molecule can be considered to be independent of all other molecules, and the macroscopic parameters of an ideal gas, mainly, pressurePand temperatureT, can be defined as simple average quantities based on individual motions of all molecules in consideration. It is shown that for an ideal gas enclosed in a macroscopic box of volumeV, the constantgappearing in the classical law of adiabatic expansion law, that is,, can be derived based on quantum mechanics. Physical implications of the result we disclose are discussed.

【 授权许可】

CC BY