Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
4.7
2.7
Journals
Entropy
Special Issues
Thermodynamics of Matter in Wide Range of Entropies
entropy-logo
Submit to Entropy Review for Entropy Propose a Special Issue

Journal Menu

► Journal Menu

Journal Browser

► Journal Browser
share announcement

Thermodynamics of Matter in Wide Range of Entropies

A special issue of Entropy (ISSN 1099-4300). This special issue belongs to the section "Thermodynamics".

Deadline for manuscript submissions: closed (30 September 2023) | Viewed by 6176

Special Issue Editor

Dr. Konstantin V Khishchenko

E-Mail Website
Guest Editor
1. Joint Institute for High Temperatures of the Russian Academy of Sciences, Izhorskaya 13 Bldg 2, Moscow 125412, Russia
2. Moscow Institute of Physics and Technology, National Research University, Institutskiy Pereulok 9, Dolgoprudny, Moscow Region 141701, Russia
3. Department of Computational Mechanics, South Ural State University, Lenin Avenue 76, Chelyabinsk 454080, Russia
4. Institute of Problems of Chemical Physics of the Russian Academy of Sciences, Academician Semenov Avenue 1, Chernogolovka, Moscow Region 142432, Russia
Interests: thermodynamic properties of materials in a wide range of pressures and temperatures; physics of high-energy densities; shock waves; laser and particle beams interaction with matter
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

This issue is devoted to experimental and theoretical studies of the behavior of matter in a wide range of thermodynamic parameters (energy, pressure, temperature, volume, and entropy). Of interest are topics such as entropy in the equations of state of various substances, phase transitions and critical phenomena, the processes of establishing thermodynamic equilibrium in matter under intense pulsed influences, the thermodynamics of non-stationary processes in condensed matter and plasma under conditions of high energy concentration, and the stability limits and decay of states of thermodynamic equilibrium in solids and liquids under overheating and high tensile stresses (negative pressures). Works on the determination of the entropy of various systems, simple substances and mixtures in modeling and experiments are welcome.

Dr. Konstantin V Khishchenko
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Entropy is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • equations of state
  • phase diagrams
  • metastable states
  • critical points of phase transitions
  • shock waves
  • tensile strength and fracture of materials
  • crystals and disordered media
  • active Brownian particles
  • reversible and irreversible processes
  • equilibrium and non-equilibrium processes

Published Papers (5 papers)

Download All Papers
Order results
Result details
Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:

Research

Jump to: Other

17 pages, 3148 KiB  
Article
Evaluation of Transport Properties and Energy Conversion of Bacterial Cellulose Membrane Using Peusner Network Thermodynamics
by Izabella Ślęzak-Prochazka, Kornelia M. Batko and Andrzej Ślęzak
Entropy 2023, 25(1), 3; https://doi.org/10.3390/e25010003 - 20 Dec 2022
Cited by 1 | Viewed by 1003
Abstract
We evaluated the transport properties of a bacterial cellulose (BC) membrane for aqueous ethanol solutions. Using the Rr version of the Kedem–Katchalsky–Peusner formalism (KKP) for the concentration polarization (CP) conditions of solutions, the osmotic and diffusion fluxes as well as the membrane [...] Read more.
We evaluated the transport properties of a bacterial cellulose (BC) membrane for aqueous ethanol solutions. Using the Rr version of the Kedem–Katchalsky–Peusner formalism (KKP) for the concentration polarization (CP) conditions of solutions, the osmotic and diffusion fluxes as well as the membrane transport parameters were determined, such as the hydraulic permeability (Lp), reflection (σ), and solute permeability (ω). We used these parameters and the Peusner (Rijr) coefficients resulting from the KKP equations to assess the transport properties of the membrane based on the calculated dependence of the concentration coefficients: the resistance, coupling, and energy conversion efficiency for aqueous ethanol solutions. The transport properties of the membrane depended on the hydrodynamic conditions of the osmotic diffusion transport. The resistance coefficients R11r, R22r, and Rdetr were positive and higher, and the R12r coefficient was negative and lower under CP conditions (higher in convective than nonconvective states). The energy conversion was evaluated and fluxes were calculated for the U-, F-, and S-energy. It was found that the energy conversion was greater and the S-energy and F-energy were lower under CP conditions. The convection effect was negative, which means that convection movements were directed vertically upwards. Understanding the membrane transport properties and mechanisms could help to develop and improve the membrane technologies and techniques used in medicine and in water and wastewater treatment processes. Full article
(This article belongs to the Special Issue Thermodynamics of Matter in Wide Range of Entropies)
►▼ Show Figures

Figure 1

8 pages, 2189 KiB  
Article
Isotherm Theoretical Study of the AlxGa1−xAsySb1−y Quaternary Alloy Using the Regular Solution Approximation for Its Possible Growth via Liquid-Phase Epitaxy at Low Temperatures
by Erick Gastellóu, Rafael García, Ana M. Herrera, Antonio Ramos, Godofredo García, Mario Robles, Jorge A. Rodríguez, Yani D. Ramírez and Roberto C. Carrillo
Entropy 2022, 24(12), 1711; https://doi.org/10.3390/e24121711 - 23 Nov 2022
Viewed by 1029
Abstract
This work presents the theoretical calculation of isotherm diagrams for quaternary alloys of III–V semiconductor compounds with the form IIIxIII1−xVyV1−y. In particular, the isotherm diagrams for the AlxGa1−xAsySb1−y [...] Read more.
This work presents the theoretical calculation of isotherm diagrams for quaternary alloys of III–V semiconductor compounds with the form IIIxIII1−xVyV1−y. In particular, the isotherm diagrams for the AlxGa1−xAsySb1−y quaternary alloy at low temperatures were calculated (500 °C, 450 °C, 400 °C, and 350 °C). The AlxGa1−xAsySb1−y quaternary alloy was formed from four binary compounds such as GaAs, AlAs, AlSb, and GaSb, all with direct bandgaps. The regular solution approximation was used to find the quaternary isotherm diagrams, represented in four linearly independent equations, which were solved using Parametric Technology Corporation Mathcad 14.0 software for different arsenic and antimony atomic fractions. The results support the possible growth of layers via liquid-phase epitaxy in a range of temperatures from 500 °C to 350 °C, where the crystalline quality could be improved at low temperatures. These semiconductor layers could have applications for optoelectronic devices in photonic communications, thermophotovoltaic systems, and microwave devices with good crystalline quality. Full article
(This article belongs to the Special Issue Thermodynamics of Matter in Wide Range of Entropies)
►▼ Show Figures

Figure 1

24 pages, 1395 KiB  
Article
Thermodynamically Consistent Models for Coupled Bulk and Surface Dynamics
by Xiaobo Jing and Qi Wang
Entropy 2022, 24(11), 1683; https://doi.org/10.3390/e24111683 - 17 Nov 2022
Viewed by 1372
Abstract
We present a constructive paradigm to derive thermodynamically consistent models coupling the bulk and surface dynamics hierarchically following the generalized Onsager principle. In the model, the bulk and surface thermodynamical variables are allowed to be different and the free energy of the model [...] Read more.
We present a constructive paradigm to derive thermodynamically consistent models coupling the bulk and surface dynamics hierarchically following the generalized Onsager principle. In the model, the bulk and surface thermodynamical variables are allowed to be different and the free energy of the model comprises the bulk, surface, and coupling energy, which can be weakly or strongly non-local. We illustrate the paradigm using a phase field model for binary materials and show that the model includes the existing thermodynamically consistent ones for the binary material system in the literature as special cases. In addition, we present a set of such phase field models for a few selected mobility operators and free energies to show how boundary dynamics impart changes to bulk dynamics and vice verse. As an example, we show numerically how reactive transport on the boundary impacts the dynamics in the bulk using a reactive transport model for binary reactive fluids by adopting a structure-preserving algorithm to solve the model equations in a rectangular domain. Full article
(This article belongs to the Special Issue Thermodynamics of Matter in Wide Range of Entropies)
►▼ Show Figures

Figure 1

Other

Jump to: Research

8 pages, 1010 KiB  
Opinion
Correspondence of the Symmetry of Thermodynamic Properties of Matter with the Symmetry of Equations of State
by Ti-Wei Xue and Zeng-Yuan Guo
Entropy 2023, 25(11), 1532; https://doi.org/10.3390/e25111532 - 10 Nov 2023
Viewed by 675
Abstract
Thermodynamics contains rich symmetries. These symmetries are usually considered independent of the structure of matter or the thermodynamic state where matter is located and, thus, highly universal. As Callen stated, the connection between the symmetry of fundamental laws and the macroscopic properties of [...] Read more.
Thermodynamics contains rich symmetries. These symmetries are usually considered independent of the structure of matter or the thermodynamic state where matter is located and, thus, highly universal. As Callen stated, the connection between the symmetry of fundamental laws and the macroscopic properties of matter is not trivially evident. However, this view is now being challenged. Recently, with symmetry to the ideal gas equation of state (EOS), an ideal dense matter EOS has been proposed, which has been verified to be in good agreement with the thermodynamic properties of high-density substances. This indicates that there is a certain symmetry between the thermodynamic properties of substances in their high- and low-density limits. This paper focuses on the distinctive features and the significance of this symmetry. It is a new class of symmetry that is dependent on the thermodynamic state of matter and can be incorporated into the existing symmetrical theoretical system of thermodynamics. A potential path for developing the EOS theory arising from this symmetry is discussed. EOS at high densities could be developed by correcting or extrapolating the ideal dense matter EOS based on this symmetry, which might fundamentally solve the difficulty of constructing EOS at high densities. Full article
(This article belongs to the Special Issue Thermodynamics of Matter in Wide Range of Entropies)
►▼ Show Figures

Figure 1

9 pages, 544 KiB  
Opinion
What Is Heat? Can Heat Capacities Be Negative?
by Emil Roduner
Entropy 2023, 25(3), 530; https://doi.org/10.3390/e25030530 - 19 Mar 2023
Cited by 1 | Viewed by 1258
Abstract
In the absence of work, the exchange of heat of a sample of matter corresponds to the change of its internal energy, given by the kinetic energy of random translational motion of all its constituent atoms or molecules relative to the center of [...] Read more.
In the absence of work, the exchange of heat of a sample of matter corresponds to the change of its internal energy, given by the kinetic energy of random translational motion of all its constituent atoms or molecules relative to the center of mass of the sample, plus the excitation of quantum states, such as vibration and rotation, and the energy of electrons in excess to their ground state. If the sample of matter is equilibrated it is described by Boltzmann’s statistical thermodynamics and characterized by a temperature T. Monotonic motion such as that of the stars of an expanding universe is work against gravity and represents the exchange of kinetic and potential energy, as described by the virial theorem, but not an exchange of heat. Heat and work are two distinct properties of thermodynamic systems. Temperature is defined for the radiative cosmic background and for individual stars, but for the ensemble of moving stars neither temperature, nor pressure, nor heat capacities are properly defined, and the application of thermodynamics is, therefore, not advised. For equilibrated atomic nanoclusters, in contrast, one may talk about negative heat capacities when kinetic energy is transformed into potential energy of expanding bonds. Full article
(This article belongs to the Special Issue Thermodynamics of Matter in Wide Range of Entropies)
►▼ Show Figures

Figure 1

Show export options expand_more Show export options expand_less
Select all
Export citation of selected articles as:
 
Displaying articles 1-5
Back to TopTop