Equação de estado para a atmosfera do tipo Van der Waals

Silva, Douglas do Nascimento; Medeiros, Deusdedit Monteiro; Silva, Isamara de Mendonça; Mendes, David

Equação de estado para a atmosfera do tipo Van der Waals

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dc.contributor.author	Silva, Douglas do Nascimento
dc.contributor.author	Medeiros, Deusdedit Monteiro
dc.contributor.author	Silva, Isamara de Mendonça
dc.contributor.author	Mendes, David
dc.date.accessioned	2020-12-14T20:15:42Z
dc.date.available	2020-12-14T20:15:42Z
dc.date.issued	2020
dc.description.resumo	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	pt_BR
dc.identifier.citation	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.	pt_BR
dc.identifier.doi	10.11137/2020_2_55_63
dc.identifier.issn	1982-3908
dc.identifier.issn	0101-9759
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/30976
dc.language	en	pt_BR
dc.publisher	Anuário do Instituto de Geociências - UFRJ	pt_BR
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc-nd/3.0/br/	*
dc.subject	Components of the Air	pt_BR
dc.subject	Temperature	pt_BR
dc.subject	Thermodynamics	pt_BR
dc.title	Equação de estado para a atmosfera do tipo Van der Waals	pt_BR
dc.title.alternative	Van der waals-like state equation for atmosphere	pt_BR
dc.type	article	pt_BR