Publicação
The two parts of the second law of thermodynamics
| Resumo: | Abstract According to Sommerfeld, the well known Clausius and Kelvin statements of the second law of thermodynamics comprises two parts. The first part includes the Carnot principle that all Carnot engines operating between the same temperatures have the same efficiency. The second part contains the law of increase in entropy. Usually, the two parts are understood as a logical consequence of these statements, including the Carnot principle. Here, we argue that this principle need not be a derived law and may be considered as a fundamental law, without the need of demonstration. To this end we analyze the roots of the second law, which are contained in the memoir of Carnot on the production of work by heat, and its emergence in the papers of Clausius on heat. |
|---|---|
| Autores principais: | Oliveira,Mário J. de |
| Assunto: | thermodynamics second law of thermodynamics Carnot principle Clausius principle |
| Ano: | 2019 |
| País: | Brasil |
| Tipo de documento: | artigo |
| Tipo de acesso: | acesso aberto |
| Instituição associada: | IBICT |
| Idioma: | inglês |
| Origem: | Oasisbr |
| _version_ | 1871507294399758336 |
|---|---|
| author | Oliveira,Mário J. de |
| author_facet | Oliveira,Mário J. de |
| author_role | author |
| country_str | BR |
| creators_json_txt | [{\"Person.name\":\"Oliveira,Mário J. de\"}] |
| datacite.creators.creator.creatorName.fl_str_mv | Oliveira,Mário J. de |
| datacite.rights.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| datacite.subjects.subject.fl_str_mv | thermodynamics second law of thermodynamics Carnot principle Clausius principle |
| datacite.titles.title.fl_str_mv | The two parts of the second law of thermodynamics |
| dc.creator.none.fl_str_mv | Oliveira,Mário J. de |
| dc.format.none.fl_str_mv | text/html |
| dc.identifier.none.fl_str_mv | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172019000100409 |
| dc.language.none.fl_str_mv | eng |
| dc.publisher.none.fl_str_mv | Sociedade Brasileira de Física |
| dc.rights.none.fl_str_mv | http://purl.org/coar/access_right/c_abf2 |
| dc.source.none.fl_str_mv | Revista Brasileira de Ensino de Física v.41 n.1 2019 reponame:Revista Brasileira de Ensino de Física (Online) instname:Sociedade Brasileira de Física (SBF) instacron:SBF |
| dc.subject.none.fl_str_mv | thermodynamics second law of thermodynamics Carnot principle Clausius principle |
| dc.title.fl_str_mv | The two parts of the second law of thermodynamics |
| dc.type.none.fl_str_mv | http://purl.org/coar/resource_type/c_6501 |
| description | Abstract According to Sommerfeld, the well known Clausius and Kelvin statements of the second law of thermodynamics comprises two parts. The first part includes the Carnot principle that all Carnot engines operating between the same temperatures have the same efficiency. The second part contains the law of increase in entropy. Usually, the two parts are understood as a logical consequence of these statements, including the Carnot principle. Here, we argue that this principle need not be a derived law and may be considered as a fundamental law, without the need of demonstration. To this end we analyze the roots of the second law, which are contained in the memoir of Carnot on the production of work by heat, and its emergence in the papers of Clausius on heat. |
| dirty | 0 |
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| format | article |
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| language | eng |
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| organization_str_mv | urn:organizationAcronym:oasisbr |
| person_str_mv | Oliveira,Mário J. de |
| publishDate | 2019 |
| publisher.none.fl_str_mv | Sociedade Brasileira de Física |
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| spelling | The two parts of the second law of thermodynamicsOliveira,Mário J. dethermodynamicssecond law of thermodynamicsCarnot principleClausius principleopen accesshttp://purl.org/coar/access_right/c_abf2http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172019000100409URLhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172019000100409URLHasVersion2019-01-01Abstract According to Sommerfeld, the well known Clausius and Kelvin statements of the second law of thermodynamics comprises two parts. The first part includes the Carnot principle that all Carnot engines operating between the same temperatures have the same efficiency. The second part contains the law of increase in entropy. Usually, the two parts are understood as a logical consequence of these statements, including the Carnot principle. Here, we argue that this principle need not be a derived law and may be considered as a fundamental law, without the need of demonstration. To this end we analyze the roots of the second law, which are contained in the memoir of Carnot on the production of work by heat, and its emergence in the papers of Clausius on heat.engtext/htmlSociedade Brasileira de FísicaRevista Brasileira de Ensino de Física v.41 n.1 2019reponame:Revista Brasileira de Ensino de Física (Online)instname:Sociedade Brasileira de Física (SBF)instacron:SBFjournal articlehttp://purl.org/coar/resource_type/c_6501literatureVoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85 |
| spellingShingle | The two parts of the second law of thermodynamics Oliveira,Mário J. de thermodynamics second law of thermodynamics Carnot principle Clausius principle |
| status | SINGLETON |
| status_str | VoR |
| subject.fl_str_mv | thermodynamics second law of thermodynamics Carnot principle Clausius principle |
| title | The two parts of the second law of thermodynamics |
| title_full | The two parts of the second law of thermodynamics |
| title_fullStr | The two parts of the second law of thermodynamics |
| title_full_unstemmed | The two parts of the second law of thermodynamics |
| title_short | The two parts of the second law of thermodynamics |
| title_sort | The two parts of the second law of thermodynamics |
| topic | thermodynamics second law of thermodynamics Carnot principle Clausius principle |
| topic_facet | thermodynamics second law of thermodynamics Carnot principle Clausius principle |
| url | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-11172019000100409 |
| visible | 1 |
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