Pressure-Volume Work for Metastable Liquid and Solid at Zero Pressure
| Autor: | Axel Groniewsky, Jakub W. Narojczyk, Gábor Györke, Attila R. Imre, Krzysztof Wojciechowski |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Work (thermodynamics)
Spinodal negative pressure Materials science General Physics and Astronomy Thermodynamics lcsh:Astrophysics 02 engineering and technology spinodal 010402 general chemistry 01 natural sciences Article heat exchange metastability metastate Metastability lcsh:QB460-466 Heat exchanger lcsh:Science Adiabatic process aergiatic isobaric adiabatic Zero (complex analysis) 021001 nanoscience & nanotechnology lcsh:QC1-999 0104 chemical sciences Volume (thermodynamics) Isobaric process lcsh:Q 0210 nano-technology lcsh:Physics |
| Zdroj: | Entropy; Volume 20; Issue 5; Pages: 338 Entropy Entropy, Vol 20, Iss 5, p 338 (2018) |
| ISSN: | 1099-4300 |
| DOI: | 10.3390/e20050338 |
| Popis: | Unlike with gases, for liquids and solids the pressure of a system can be not only positive, but also negative, or even zero. Upon isobaric heat exchange (heating or cooling) at p = 0, the volume work (p-V) should be zero, assuming the general validity of traditional δW = dWp = −pdV equality. This means that at zero pressure, a special process can be realized; a macroscopic change of volume achieved by isobaric heating/cooling without any work done by the system on its surroundings or by the surroundings on the system. A neologism is proposed for these dWp = 0 (and in general, also for non-trivial δW = 0 and W = 0) processes: “aergiatic” (from Greek: Ἀεργία, “inactivity”). In this way, two phenomenologically similar processes—adiabatic without any heat exchange, and aergiatic without any work—would have matching, but well-distinguishable terms. |
| Databáze: | OpenAIRE |
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