Approach to thermal equilibrium in a system with adiabatic constraints
作者:
Bruno Crosignani,
Paolo Di Porto,
Mordechai Segev,
期刊:
American Journal of Physics
(AIP Available online 1996)
卷期:
Volume 64,
issue 5
页码: 610-613
ISSN:0002-9505
年代: 1996
DOI:10.1119/1.18163
出版商: American Association of Physics Teachers
关键词: THERMAL EQUILIBRIUM;ADIABATIC PROCESSES;CONSTRAINTS;ENTROPY;KINETICS;PISTONS;05.70
数据来源: AIP
摘要:
The problem of prediction of the equilibrium state in an isolated composite system with an adiabatic internal wall is a delicate problem, whose solution is easily seen to be not entirely determined in the frame of elementary thermodynamics. We show how this indeterminacy can be removed by introducing a suitable kinetic model, in which the influence of the finite velocity of the wall on the change of momentum of the gas molecules impinging on it plays a relevant role. An interesting feature of the entropy behavior of the system is discussed.
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