| Issue |
EPL
Volume 80, Number 5, December 2007
|
|
|---|---|---|
| Article Number | 50001 | |
| Number of page(s) | 5 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/80/50001 | |
| Published online | 25 October 2007 | |
Equation of state in a small system: Violation of an assumption of Maxwell's demon
Department of Physics, Tohoku University - Sendai 980-8578, Japan and Institut Curie, Section Recherche, UMR168 - 26 rue d'Ulm, 75248 Paris Cedex 05, France
Corresponding author: hondou@cmpt.phys.tohoku.ac.jp
Received:
19
February
2007
Accepted:
2
October
2007
An equation of state for an ideal gas with a small number of particles is studied. The resulting equation is found to differ from that expected in conventional thermodynamics, which is strikingly illustrated when considering the traditional thermodynamic problem of Maxwell's demon. We clarify the mechanism of this different feature of thermodynamics arising in small systems.
PACS: 05.70.Ce – Thermodynamic functions and equations of state / 82.37.-j – Single molecule kinetics
© Europhysics Letters Association, 2007
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