Results 11 to 20 of about 2,865,644 (194)

Gravitational Entropy and the Second Law of Thermodynamics [PDF]

open access: yesEntropy, 2015
The spontaneous violation of Lorentz and diffeomorphism invariance in a phase near the big bang lowers the entropy, allowing for an arrow of time and the second law of thermodynamics. The spontaneous symmetry breaking leads to
John W. Moffat
doaj   +5 more sources

On thermodynamics second law in the modified Gauss Bonnet gravity [PDF]

open access: yesPhys.Scripta 05:055006,2011, 2010
The second law and the generalized second law of thermodynamics in cosmology in the framework of the modified Gauss-Bonnet theory of gravity are investigated. The conditions upon which these laws hold are derived and discussed.
Bamba K Geng C Nojiri S Odintsov S D   +20 more
arxiv   +3 more sources

Thermodynamic Analysis of Gravitational Field Equations in Lyra Manifold [PDF]

open access: yesAdvances in High Energy Physics, 2017
Considering the Einstein field equations in Lyra manifold and applying the unified first law of thermodynamics as well as the Clausius relation to the apparent horizon of FRW universe, we find the entropy of apparent horizon in Lyra manifold. In addition,
H. Moradpour   +3 more
doaj   +4 more sources

What Is the Real Clausius Statement of the Second Law of Thermodynamics? [PDF]

open access: yesEntropy, 2019
In this paper, we first analyze the difference between the second law of thermodynamics and the laws in other disciplines. There are some phenomena in other disciplines similar to the Clausius Statement of the second law, but none of them has been ...
Ti-Wei Xue, Zeng-Yuan Guo
doaj   +2 more sources

Second law, entropy production, and reversibility in thermodynamics of information [PDF]

open access: yesarXiv, 2017
We present a pedagogical review of the fundamental concepts in thermodynamics of information, by focusing on the second law of thermodynamics and the entropy production. Especially, we discuss the relationship among thermodynamic reversibility, logical reversibility, and heat emission in the context of the Landauer principle and clarify that these ...
A Bérut   +129 more
arxiv   +3 more sources

Thermodynamics in Rastall gravity with entropy corrections

open access: yesEuropean Physical Journal C: Particles and Fields, 2018
We explore the thermodynamic analysis at the apparent horizon in the framework of Rastall theory of gravity. We take different entropies such as the Bakenstein, logarithmic corrected, power law corrected, and the Renyi entropies. We investigate the first
Kazuharu Bamba   +3 more
doaj   +3 more sources

Modeling Fluid dynamics and Aerodynamics by Second Law and Bejan Number (Part 1 - Theory) [PDF]

open access: yesINCAS Bulletin, 2019
Two fundamental questions are still open about the complex relation between fluid dynamics and thermodynamics. Is it possible (and convenient) to describe fluid dynamic in terms of second law based thermodynamic equations?
Michele TRANCOSSI, Jose PASCOA
doaj   +1 more source

TERMODINAMIKA LUBANG HITAM: HUKUM PERTAMA DAN KEDUA SERTA PERSAMAAN ENTROPI

open access: yesJurnal Kumparan Fisika, 2023
ABSTRAK   Artikel ini membahas konsep termodinamika yang berlaku pada Lubang Hitam, yaitu hukum termodinamika pertama dan kedua. Hukum pertama termodinamika menghubungkan perubahan massa dengan perubahan entropi dan kerja, memungkinkan Lubang Hitam ...
Ruben Cornelius Siagian   +3 more
doaj   +1 more source

The Second Law and Entropy Misconceptions Demystified

open access: yesEntropy, 2020
The challenges and claims of hypothetical violations of the Second Law of thermodynamics have been a topic of many scientific, philosophical and social publications, even in the most prestigious scientific journals.
Milivoje M. Kostic
doaj   +1 more source

The Second Law of Thermodynamics [PDF]

open access: yesNature, 1905
Is it not true that the Second Law of Thermodynamics is contradicted by the known facts of diffusion? When, for instance, masses of hydrogen and nitrogen are separated by a palladium partition, a difference of pressure is set up, owing to the diffusion of some of the hydrogen into the compartment which at first contained only nitrogen.
openaire   +5 more sources

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