Equação de estado para a atmosfera do tipo Van der Waals

In this paper, we first analyze the atmosphere as a gas mixture per unit mass, which is governed by Van der Waals equation, considering the main components of the air and their respective critical properties (critical temperature TC and critical pressure pC ). After adjusting the corresponding const...

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Principais autores: Silva, Douglas do Nascimento, Medeiros, Deusdedit Monteiro, Silva, Isamara de Mendonça, Mendes, David
Formato: article
Idioma:English
Publicado em: Anuário do Instituto de Geociências - UFRJ
Assuntos:
Components of the Air
Temperature
Thermodynamics
Endereço do item:https://repositorio.ufrn.br/handle/123456789/30976
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spelling ri-123456789-309762020-12-20T07:59:38Z Equação de estado para a atmosfera do tipo Van der Waals Van der waals-like state equation for atmosphere Silva, Douglas do Nascimento Medeiros, Deusdedit Monteiro Silva, Isamara de Mendonça Mendes, David Components of the Air Temperature Thermodynamics In this paper, we first analyze the atmosphere as a gas mixture per unit mass, which is governed by Van der Waals equation, considering the main components of the air and their respective critical properties (critical temperature TC and critical pressure pC ). After adjusting the corresponding constants and calling them I and D, we find Van der Waals state equation for the atmosphere in this context. Next, we analyze the order of magnitude of the terms in that equation and propose a Van der Waals-like form state equation depending only on D, which we call WD state equation. Additionally, we consider a physical approach for Van der Waals equation for the atmosphere, studying the pressure terms concerning intermolecular forces of repulsion and attraction in the air, and once again we find the previous WD state equation. With this new proposal, we verify that the potential temperature and the equivalent potential temperature hold for the same expressions as those set forth in atmospheric thermodynamics under the analysis of the ideal gas law. However, we discover corrections that depend on D in both the alternative form of the first law of thermodynamics and the virtual temperature 2020-12-14T20:15:42Z 2020-12-14T20:15:42Z 2020 article MEDEIROS, Deusdedit Monteiro; SILVA, Isamara de Mendonça; SILVA, Douglas do Nascimento; MENDES, David. Van der Waals-like State Equation for Atmosphere. Anuário do Instituto de Geociências - UFRJ, [S.L.], v. 43, n. 2, p. 55-63, 21 ago. 2020. Disponível em: https://revistas.ufrj.br/index.php/aigeo/article/view/35929. Acesso em: 06 out. 2020. http://dx.doi.org/10.11137/2020_2_55_63. 1982-3908 0101-9759 https://repositorio.ufrn.br/handle/123456789/30976 10.11137/2020_2_55_63 en Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Anuário do Instituto de Geociências - UFRJ
institution Repositório Institucional
collection RI - UFRN
language English
topic Components of the Air
Temperature
Thermodynamics
spellingShingle Components of the Air
Temperature
Thermodynamics
Silva, Douglas do Nascimento
Medeiros, Deusdedit Monteiro
Silva, Isamara de Mendonça
Mendes, David
Equação de estado para a atmosfera do tipo Van der Waals
description In this paper, we first analyze the atmosphere as a gas mixture per unit mass, which is governed by Van der Waals equation, considering the main components of the air and their respective critical properties (critical temperature TC and critical pressure pC ). After adjusting the corresponding constants and calling them I and D, we find Van der Waals state equation for the atmosphere in this context. Next, we analyze the order of magnitude of the terms in that equation and propose a Van der Waals-like form state equation depending only on D, which we call WD state equation. Additionally, we consider a physical approach for Van der Waals equation for the atmosphere, studying the pressure terms concerning intermolecular forces of repulsion and attraction in the air, and once again we find the previous WD state equation. With this new proposal, we verify that the potential temperature and the equivalent potential temperature hold for the same expressions as those set forth in atmospheric thermodynamics under the analysis of the ideal gas law. However, we discover corrections that depend on D in both the alternative form of the first law of thermodynamics and the virtual temperature
format article
author Silva, Douglas do Nascimento
Medeiros, Deusdedit Monteiro
Silva, Isamara de Mendonça
Mendes, David
author_facet Silva, Douglas do Nascimento
Medeiros, Deusdedit Monteiro
Silva, Isamara de Mendonça
Mendes, David
author_sort Silva, Douglas do Nascimento
title Equação de estado para a atmosfera do tipo Van der Waals
title_short Equação de estado para a atmosfera do tipo Van der Waals
title_full Equação de estado para a atmosfera do tipo Van der Waals
title_fullStr Equação de estado para a atmosfera do tipo Van der Waals
title_full_unstemmed Equação de estado para a atmosfera do tipo Van der Waals
title_sort equação de estado para a atmosfera do tipo van der waals
publisher Anuário do Instituto de Geociências - UFRJ
publishDate 2020
url https://repositorio.ufrn.br/handle/123456789/30976
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AT medeirosdeusdeditmonteiro equacaodeestadoparaaatmosferadotipovanderwaals
AT silvaisamarademendonca equacaodeestadoparaaatmosferadotipovanderwaals
AT mendesdavid equacaodeestadoparaaatmosferadotipovanderwaals
AT silvadouglasdonascimento vanderwaalslikestateequationforatmosphere
AT medeirosdeusdeditmonteiro vanderwaalslikestateequationforatmosphere
AT silvaisamarademendonca vanderwaalslikestateequationforatmosphere
AT mendesdavid vanderwaalslikestateequationforatmosphere
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