On the Sackur-Tetrode equation in an expanding universe
In this work we investigate the thermodynamic properties satisfied by an expanding universe filled with a monoatomic ideal gas. We show that the equations for the energy density, entropy density and chemical potential remain the same of an ideal gas confined to a constant volume V. In particular the Sackur-Tetrode equation for the entropy of the ideal gas is also valid in the case of an expanding universe, provided that the constant value that represents the current entropy of the universe is appropriately chosen.
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Sociedad Mexicana de Física
2011
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-35422011000100002 |
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oai:scielo:S1870-354220110001000022011-10-06On the Sackur-Tetrode equation in an expanding universePereira,S.H. Expanding universe ideal gas Sackur-Tetrode equation In this work we investigate the thermodynamic properties satisfied by an expanding universe filled with a monoatomic ideal gas. We show that the equations for the energy density, entropy density and chemical potential remain the same of an ideal gas confined to a constant volume V. In particular the Sackur-Tetrode equation for the entropy of the ideal gas is also valid in the case of an expanding universe, provided that the constant value that represents the current entropy of the universe is appropriately chosen.info:eu-repo/semantics/openAccessSociedad Mexicana de FísicaRevista mexicana de física E v.57 n.1 20112011-06-01info:eu-repo/semantics/articletext/htmlhttp://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-35422011000100002en |
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revista |
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| language |
English |
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Digital |
| author |
Pereira,S.H. |
| spellingShingle |
Pereira,S.H. On the Sackur-Tetrode equation in an expanding universe |
| author_facet |
Pereira,S.H. |
| author_sort |
Pereira,S.H. |
| title |
On the Sackur-Tetrode equation in an expanding universe |
| title_short |
On the Sackur-Tetrode equation in an expanding universe |
| title_full |
On the Sackur-Tetrode equation in an expanding universe |
| title_fullStr |
On the Sackur-Tetrode equation in an expanding universe |
| title_full_unstemmed |
On the Sackur-Tetrode equation in an expanding universe |
| title_sort |
on the sackur-tetrode equation in an expanding universe |
| description |
In this work we investigate the thermodynamic properties satisfied by an expanding universe filled with a monoatomic ideal gas. We show that the equations for the energy density, entropy density and chemical potential remain the same of an ideal gas confined to a constant volume V. In particular the Sackur-Tetrode equation for the entropy of the ideal gas is also valid in the case of an expanding universe, provided that the constant value that represents the current entropy of the universe is appropriately chosen. |
| publisher |
Sociedad Mexicana de Física |
| publishDate |
2011 |
| url |
http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1870-35422011000100002 |
| work_keys_str_mv |
AT pereirash onthesackurtetrodeequationinanexpandinguniverse |
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1756228830917296128 |