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Entropy 2013, 15(9), 3379-3395; doi:10.3390/e15093379
Article

A New Perspective on Classical Ideal Gases

1
, 2,*  and 3
Received: 19 June 2013; in revised form: 24 July 2013 / Accepted: 13 August 2013 / Published: 29 August 2013
Download PDF [284 KB, uploaded 29 August 2013]
Abstract: The ideal-gas barometric and pressure laws are derived from the Democritian concept of independent corpuscles moving in vacuum, plus a principle of simplicity, namely that these laws are independent of the kinetic part of the Hamiltonian. A single corpuscle in contact with a heat bath in a cylinder and submitted to a constant force (weight) is considered. The paper importantly supplements a previously published paper: First, the stability of ideal gases is established. Second, we show that when walls separate the cylinder into parts and are later removed, the entropy is unaffected. We obtain full agreement with Landsberg’s and others’ (1994) classical thermodynamic result for the entropy of a column of gas submitted to gravity.
Keywords: ideal gas law; corpuscular concepts; classical gas theory; canonical single-corpuscle thermodynamics; gas stability; Gibbs paradox ideal gas law; corpuscular concepts; classical gas theory; canonical single-corpuscle thermodynamics; gas stability; Gibbs paradox
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Arnaud, J.; Chusseau, L.; Philippe, F. A New Perspective on Classical Ideal Gases. Entropy 2013, 15, 3379-3395.

AMA Style

Arnaud J, Chusseau L, Philippe F. A New Perspective on Classical Ideal Gases. Entropy. 2013; 15(9):3379-3395.

Chicago/Turabian Style

Arnaud, Jacques; Chusseau, Laurent; Philippe, Fabrice. 2013. "A New Perspective on Classical Ideal Gases." Entropy 15, no. 9: 3379-3395.


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