Physics of the fire piston and the fog bottle
Autor(a) principal: | |
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Data de Publicação: | 2007 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10316/12345 https://doi.org/10.1088/0143-0807/28/6/017 |
Resumo: | We analyze two irreversible adiabatic processes occurring in two thermodynamical devices: the fire piston and the “fog bottle”. In the first, an abrupt adiabatic compression of air inside a piston causes the burning of a small paper piece, since the final temperature reaches 700 K. In the second, an abrupt adiabatic expansion of a gas at high pressure leads to a temperature decrease with condensation of water vapour and fog formation. We show that, if the two processes were carried out reversibly, the final temperature would always be lower than in the irreversible processes |
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Physics of the fire piston and the fog bottleWe analyze two irreversible adiabatic processes occurring in two thermodynamical devices: the fire piston and the “fog bottle”. In the first, an abrupt adiabatic compression of air inside a piston causes the burning of a small paper piece, since the final temperature reaches 700 K. In the second, an abrupt adiabatic expansion of a gas at high pressure leads to a temperature decrease with condensation of water vapour and fog formation. We show that, if the two processes were carried out reversibly, the final temperature would always be lower than in the irreversible processesInstitute of Physics2007info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/10316/12345http://hdl.handle.net/10316/12345https://doi.org/10.1088/0143-0807/28/6/017engEur. J. Phys. 28 (2007) 1199-12050143-0807Güémez, JúlioFiolhais, CarlosFiolhais, Manuelinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2020-11-06T17:00:04Zoai:estudogeral.uc.pt:10316/12345Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:59:52.807206Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Physics of the fire piston and the fog bottle |
title |
Physics of the fire piston and the fog bottle |
spellingShingle |
Physics of the fire piston and the fog bottle Güémez, Júlio |
title_short |
Physics of the fire piston and the fog bottle |
title_full |
Physics of the fire piston and the fog bottle |
title_fullStr |
Physics of the fire piston and the fog bottle |
title_full_unstemmed |
Physics of the fire piston and the fog bottle |
title_sort |
Physics of the fire piston and the fog bottle |
author |
Güémez, Júlio |
author_facet |
Güémez, Júlio Fiolhais, Carlos Fiolhais, Manuel |
author_role |
author |
author2 |
Fiolhais, Carlos Fiolhais, Manuel |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Güémez, Júlio Fiolhais, Carlos Fiolhais, Manuel |
description |
We analyze two irreversible adiabatic processes occurring in two thermodynamical devices: the fire piston and the “fog bottle”. In the first, an abrupt adiabatic compression of air inside a piston causes the burning of a small paper piece, since the final temperature reaches 700 K. In the second, an abrupt adiabatic expansion of a gas at high pressure leads to a temperature decrease with condensation of water vapour and fog formation. We show that, if the two processes were carried out reversibly, the final temperature would always be lower than in the irreversible processes |
publishDate |
2007 |
dc.date.none.fl_str_mv |
2007 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10316/12345 http://hdl.handle.net/10316/12345 https://doi.org/10.1088/0143-0807/28/6/017 |
url |
http://hdl.handle.net/10316/12345 https://doi.org/10.1088/0143-0807/28/6/017 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Eur. J. Phys. 28 (2007) 1199-1205 0143-0807 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Institute of Physics |
publisher.none.fl_str_mv |
Institute of Physics |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
institution |
RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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1799133889013219328 |