Entropy generation in a chemical reaction

Autores
Miranda, Enrique Nestor
Año de publicación
2010
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Entropy generation   in a chemical reaction is analyzed without using the general formalism of non-equilibrium thermodynamics at a level adequate for advance undergraduates. In a first approach to the problem, the phenomenological kinetic equation of an elementary first order reaction is used to show that  entropy production is always positive.  A second approach assumes that the reaction is near equilibrium to prove that the entropy generated is always greater than zero, and no reference is made to the kinetics of the reaction. Finally, it is shown that entropy generation is related with fluctuations in the number of particles in equilibrium, i.e. it is associated to a microscopic process.
Fil: Miranda, Enrique Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
Materia
CHEMICAL KINETICS
NON-EQUILIBRIUM PROCESSES
ENTROPY
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/275334
Acceder
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repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Entropy generation in a chemical reactionMiranda, Enrique NestorCHEMICAL KINETICSNON-EQUILIBRIUM PROCESSESENTROPYhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Entropy generation   in a chemical reaction is analyzed without using the general formalism of non-equilibrium thermodynamics at a level adequate for advance undergraduates. In a first approach to the problem, the phenomenological kinetic equation of an elementary first order reaction is used to show that  entropy production is always positive.  A second approach assumes that the reaction is near equilibrium to prove that the entropy generated is always greater than zero, and no reference is made to the kinetics of the reaction. Finally, it is shown that entropy generation is related with fluctuations in the number of particles in equilibrium, i.e. it is associated to a microscopic process.Fil: Miranda, Enrique Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; ArgentinaIOP Publishing2010-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/275334Miranda, Enrique Nestor; Entropy generation in a chemical reaction; IOP Publishing; European Journal of Physics; 31; 2; 3-2010; 267-2720143-0807CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0143-0807/31/2/003info:eu-repo/semantics/altIdentifier/doi/10.1088/0143-0807/31/2/003info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-12-03T09:06:05Zoai:ri.conicet.gov.ar:11336/275334instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-12-03 09:06:05.859CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Entropy generation in a chemical reaction
title Entropy generation in a chemical reaction
spellingShingle Entropy generation in a chemical reaction
Miranda, Enrique Nestor
CHEMICAL KINETICS
NON-EQUILIBRIUM PROCESSES
ENTROPY
title_short Entropy generation in a chemical reaction
title_full Entropy generation in a chemical reaction
title_fullStr Entropy generation in a chemical reaction
title_full_unstemmed Entropy generation in a chemical reaction
title_sort Entropy generation in a chemical reaction
dc.creator.none.fl_str_mv Miranda, Enrique Nestor
author Miranda, Enrique Nestor
author_facet Miranda, Enrique Nestor
author_role author
dc.subject.none.fl_str_mv CHEMICAL KINETICS
NON-EQUILIBRIUM PROCESSES
ENTROPY
topic CHEMICAL KINETICS
NON-EQUILIBRIUM PROCESSES
ENTROPY
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Entropy generation   in a chemical reaction is analyzed without using the general formalism of non-equilibrium thermodynamics at a level adequate for advance undergraduates. In a first approach to the problem, the phenomenological kinetic equation of an elementary first order reaction is used to show that  entropy production is always positive.  A second approach assumes that the reaction is near equilibrium to prove that the entropy generated is always greater than zero, and no reference is made to the kinetics of the reaction. Finally, it is shown that entropy generation is related with fluctuations in the number of particles in equilibrium, i.e. it is associated to a microscopic process.
Fil: Miranda, Enrique Nestor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Provincia de Mendoza. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales. Universidad Nacional de Cuyo. Instituto Argentino de Nivología, Glaciología y Ciencias Ambientales; Argentina
description Entropy generation   in a chemical reaction is analyzed without using the general formalism of non-equilibrium thermodynamics at a level adequate for advance undergraduates. In a first approach to the problem, the phenomenological kinetic equation of an elementary first order reaction is used to show that  entropy production is always positive.  A second approach assumes that the reaction is near equilibrium to prove that the entropy generated is always greater than zero, and no reference is made to the kinetics of the reaction. Finally, it is shown that entropy generation is related with fluctuations in the number of particles in equilibrium, i.e. it is associated to a microscopic process.
publishDate 2010
dc.date.none.fl_str_mv 2010-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/275334
Miranda, Enrique Nestor; Entropy generation in a chemical reaction; IOP Publishing; European Journal of Physics; 31; 2; 3-2010; 267-272
0143-0807
CONICET Digital
CONICET
url http://hdl.handle.net/11336/275334
identifier_str_mv Miranda, Enrique Nestor; Entropy generation in a chemical reaction; IOP Publishing; European Journal of Physics; 31; 2; 3-2010; 267-272
0143-0807
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://iopscience.iop.org/article/10.1088/0143-0807/31/2/003
info:eu-repo/semantics/altIdentifier/doi/10.1088/0143-0807/31/2/003
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv IOP Publishing
publisher.none.fl_str_mv IOP Publishing
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.275514

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