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Condições de equilíbrio termodinâmico: a função disponibilidade

open access: yesQuímica Nova, 2011
The thermodynamic equilibrium is a state defined by conditions which depend upon some characteristics of the system. It requires thermal, mechanical, chemical and phase equilibrium.
Alessandro Ranulfo Lima Nery   +1 more
doaj   +1 more source

Thermodynamic Description of Ternary Fe-B-X Systems. Part 6: Fe-B-Ti [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
Thermodynamic optimizations of the ternary Fe-B-Ti system and its binary sub-system, B-Ti are presented. The thermodynamic descriptions of the other binaries, Fe-Ti and Fe-B, are taken from the earlier studies slightly modifying the Fe-Ti system ...
J. Miettinen   +4 more
doaj   +1 more source

Quasilocal energy and thermodynamic equilibrium conditions [PDF]

open access: yes, 2015
Equilibrium thermodynamic laws are typically applied to horizons in general relativity without stating the conditions that bring them into equilibrium. We fill this gap by applying a new thermodynamic interpretation to a generalized Raychaudhuri equation
Uzun, Nezihe, Wiltshire, David L.
core   +2 more sources

Braun-Le Chatelier principle in dissipative thermodynamics

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2019
Braun-Le Chatelier principle is a fundamental result of equilibrium thermodynamics, showing how stable equilibrium states shift when external conditions are varied. The principle follows from convexity of a thermodynamic potential.
Michal Pavelka, Miroslav Grmela
doaj   +1 more source

Thermodynamic Insight into the Equilibrium Component Prediction in the Al-Ti-Ca-Oxide System [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
The prediction of equilibrium components for chemical reactions is a considerable section in the metallurgical industry. According to the ion and molecule coexistence theory (IMCT), a modified mass action concentration model based on a thermodynamic ...
Yu-lai Song   +5 more
doaj   +1 more source

Phase transitions in geometrothermodynamics

open access: yes, 2010
Using the formalism of geometrothermodynamics, we investigate the geometric properties of the equilibrium manifold for diverse thermodynamic systems. Starting from Legendre invariant metrics of the phase manifold, we derive thermodynamic metrics for the ...
Alberto Sánchez   +26 more
core   +1 more source

Local non-equilibrium thermodynamics [PDF]

open access: yesScientific Reports, 2015
AbstractLocal Shannon entropy lies at the heart of modern thermodynamics, with much discussion of trajectory-dependent entropy production. When taken at both boundaries of a process in phase space, it reproduces the second law of thermodynamics over a finite time interval for small scale systems.
Jinwoo, Lee, Tanaka, Hajime
openaire   +3 more sources

Thermodynamic extremal principle and its application to Dufour and Soret effects and plasticity

open access: yesAtti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2008
An extremal principle is formulated for thermodynamic systems near equilibrium subjected to various external conditions. It is shown that the principle describes unambiguously the kinetics of the thermodynamic system and replaces classical ...
Fischer, Franz Dieter   +2 more
doaj   +1 more source

Geometric description of BTZ black holes thermodynamics

open access: yes, 2008
We study the properties of the space of thermodynamic equilibrium states of the Ba\~nados-Teitelboim-Zanelli (BTZ) black hole in (2+1)-gravity.
Alberto Sánchez   +7 more
core   +1 more source

Unique extension of the maximum entropy principle to phase coexistence in heat conduction

open access: yesPhysical Review Research, 2022
The maximum entropy principle determines the values of thermodynamic variables in thermally isolated equilibrium systems. This paper extends the principle to a variational principle that applies to liquid–gas coexistence in heat conduction.
Naoko Nakagawa, Shin-ichi Sasa
doaj   +1 more source

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