What Is Temperature? Modern Outlook on the Concept of Temperature
The meaning and evolution of the notion of “temperature” (which is a key concept for the condensed and gaseous matter theories) are addressed from different points of view. The concept of temperature has turned out to be much more fundamental than conventionally thought. In particular, the temperatu...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-12-01
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| Series: | Entropy |
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| Online Access: | https://www.mdpi.com/1099-4300/22/12/1366 |
| _version_ | 1797545806271610880 |
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| author | Edward Bormashenko |
| author_facet | Edward Bormashenko |
| author_sort | Edward Bormashenko |
| collection | DOAJ |
| description | The meaning and evolution of the notion of “temperature” (which is a key concept for the condensed and gaseous matter theories) are addressed from different points of view. The concept of temperature has turned out to be much more fundamental than conventionally thought. In particular, the temperature may be introduced for systems built of a “small” number of particles and particles at rest. The Kelvin temperature scale may be introduced into quantum and relativistic physics due to the fact that the efficiency of the quantum and relativistic Carnot cycles coincides with that of the classical one. The relation of temperature with the metrics of the configurational space describing the behavior of systems built from non-interacting particles is demonstrated. The role of temperature in constituting inertia and gravity forces treated as entropy forces is addressed. The Landauer principle asserts that the temperature of a system is the only physical value defining the energy cost of the isothermal erasure of a single bit of information. The fundamental role of the temperature of the cosmic microwave background in modern cosmology is discussed. The range of problems and controversies related to the negative absolute temperature is treated. |
| first_indexed | 2024-03-10T14:21:13Z |
| format | Article |
| id | doaj.art-3bc373f6eea44588b276a8b5b5e24f64 |
| institution | Directory Open Access Journal |
| issn | 1099-4300 |
| language | English |
| last_indexed | 2024-03-10T14:21:13Z |
| publishDate | 2020-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Entropy |
| spelling | doaj.art-3bc373f6eea44588b276a8b5b5e24f642023-11-20T23:23:01ZengMDPI AGEntropy1099-43002020-12-012212136610.3390/e22121366What Is Temperature? Modern Outlook on the Concept of TemperatureEdward Bormashenko0Chemical Engineering Department, Engineering Faculty, Ariel University, P.O. Box 3, Ariel 407000, IsraelThe meaning and evolution of the notion of “temperature” (which is a key concept for the condensed and gaseous matter theories) are addressed from different points of view. The concept of temperature has turned out to be much more fundamental than conventionally thought. In particular, the temperature may be introduced for systems built of a “small” number of particles and particles at rest. The Kelvin temperature scale may be introduced into quantum and relativistic physics due to the fact that the efficiency of the quantum and relativistic Carnot cycles coincides with that of the classical one. The relation of temperature with the metrics of the configurational space describing the behavior of systems built from non-interacting particles is demonstrated. The role of temperature in constituting inertia and gravity forces treated as entropy forces is addressed. The Landauer principle asserts that the temperature of a system is the only physical value defining the energy cost of the isothermal erasure of a single bit of information. The fundamental role of the temperature of the cosmic microwave background in modern cosmology is discussed. The range of problems and controversies related to the negative absolute temperature is treated.https://www.mdpi.com/1099-4300/22/12/1366temperaturequantum Carnot enginerelativistic Carnot cyclemetrics of the configurational spaceLandauer’s principleentropic force |
| spellingShingle | Edward Bormashenko What Is Temperature? Modern Outlook on the Concept of Temperature Entropy temperature quantum Carnot engine relativistic Carnot cycle metrics of the configurational space Landauer’s principle entropic force |
| title | What Is Temperature? Modern Outlook on the Concept of Temperature |
| title_full | What Is Temperature? Modern Outlook on the Concept of Temperature |
| title_fullStr | What Is Temperature? Modern Outlook on the Concept of Temperature |
| title_full_unstemmed | What Is Temperature? Modern Outlook on the Concept of Temperature |
| title_short | What Is Temperature? Modern Outlook on the Concept of Temperature |
| title_sort | what is temperature modern outlook on the concept of temperature |
| topic | temperature quantum Carnot engine relativistic Carnot cycle metrics of the configurational space Landauer’s principle entropic force |
| url | https://www.mdpi.com/1099-4300/22/12/1366 |
| work_keys_str_mv | AT edwardbormashenko whatistemperaturemodernoutlookontheconceptoftemperature |