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Open AccessArticle

Entropic Measure of Time, and Gas Expansion in Vacuum

1
Ural Federal University, 19 Mira St., Ekaterinburg 620002, Russia
2
Institute of Industrial Ecology, Russian Academy of Sciences, 20 S. Kovalevskaya St., Ekaterinburg 620219, Russia
*
Author to whom correspondence should be addressed.
Academic Editors: Milivoje M. Kostic and Kevin H. Knuth
Entropy 2016, 18(6), 233; https://doi.org/10.3390/e18060233
Received: 29 March 2016 / Revised: 31 May 2016 / Accepted: 9 June 2016 / Published: 21 June 2016
(This article belongs to the Special Issue Exploring the Second Law of Thermodynamics)
The study considers advantages of the introduced measure of time based on the entropy change under irreversible processes (entropy production). Using the example of non-equilibrium expansion of an ideal gas in vacuum, such a measure is introduced. It is shown that, in the general case, this measure of time proves to be nonlinearly related to the reference measure assumed uniform by convention. The connection between this result and the results of other authors investigating the measure of time in some biological and cosmological problems is noted. View Full-Text
Keywords: entropy production; intrinsic and chronological times; ideal gas expansion entropy production; intrinsic and chronological times; ideal gas expansion
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MDPI and ACS Style

Martyushev, L.M.; Shaiapin, E.V. Entropic Measure of Time, and Gas Expansion in Vacuum. Entropy 2016, 18, 233. https://doi.org/10.3390/e18060233

AMA Style

Martyushev LM, Shaiapin EV. Entropic Measure of Time, and Gas Expansion in Vacuum. Entropy. 2016; 18(6):233. https://doi.org/10.3390/e18060233

Chicago/Turabian Style

Martyushev, Leonid M.; Shaiapin, Evgenii V. 2016. "Entropic Measure of Time, and Gas Expansion in Vacuum" Entropy 18, no. 6: 233. https://doi.org/10.3390/e18060233

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