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Reply published on 18 December 2018, see Entropy 2018, 20(12), 986.
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Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, Entropy 2018, 20, 542

Engineering Faculty, Chemical Engineering, Biotechnology and Materials Department, Ariel University, P.O.B. 3, 407000 Ariel, Israel
Entropy 2018, 20(12), 980; https://doi.org/10.3390/e20120980
Received: 12 September 2018 / Revised: 15 October 2018 / Accepted: 20 November 2018 / Published: 17 December 2018
(This article belongs to the Section Thermodynamics)
The goal of this comment note is to express my concerns about the recent paper by Tian Zhao et al. (Entropy 2018, 20, 542). It is foreseen that this comment will stimulate a fruitful discussion of the issues involved. The principle of the least thermodynamic action is applicable for the analysis of the Carnot cycle using the entropy (not heat) generation extrema theorem. The transversality conditions of the variational problem provide the rectangular shape of the ST diagram for the Carnot cycle. View Full-Text
Keywords: heat engines; principle of least action; Carnot cycle; entropy production; transversality conditions heat engines; principle of least action; Carnot cycle; entropy production; transversality conditions
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Bormashenko, E. Comments on “The Principle of Least Action for Reversible Thermodynamic Processes and Cycles”, Entropy 2018, 20, 542. Entropy 2018, 20, 980.

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