Pressure-volume work for metastable liquid and solid at zero pressure

A. Imre, Krzysztof W. Wojciechowski, Gábor Györke, Axel Groniewsky, Jakub W. Narojczyk

Research output: Contribution to journalArticle

Abstract

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: 'Aεργiα, "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.

Original languageEnglish
Article number338
JournalEntropy
Volume20
Issue number5
DOIs
Publication statusPublished - May 3 2018

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liquids
cooling
heat
heating
gases

Keywords

  • Adiabatic
  • Aergiatic
  • Heat exchange
  • Isobaric
  • Metastability
  • Metastate
  • Negative pressure
  • Spinodal

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Imre, A., Wojciechowski, K. W., Györke, G., Groniewsky, A., & Narojczyk, J. W. (2018). Pressure-volume work for metastable liquid and solid at zero pressure. Entropy, 20(5), [338]. https://doi.org/10.3390/e20050338

Pressure-volume work for metastable liquid and solid at zero pressure. / Imre, A.; Wojciechowski, Krzysztof W.; Györke, Gábor; Groniewsky, Axel; Narojczyk, Jakub W.

In: Entropy, Vol. 20, No. 5, 338, 03.05.2018.

Research output: Contribution to journalArticle

Imre, A, Wojciechowski, KW, Györke, G, Groniewsky, A & Narojczyk, JW 2018, 'Pressure-volume work for metastable liquid and solid at zero pressure', Entropy, vol. 20, no. 5, 338. https://doi.org/10.3390/e20050338
Imre A, Wojciechowski KW, Györke G, Groniewsky A, Narojczyk JW. Pressure-volume work for metastable liquid and solid at zero pressure. Entropy. 2018 May 3;20(5). 338. https://doi.org/10.3390/e20050338
Imre, A. ; Wojciechowski, Krzysztof W. ; Györke, Gábor ; Groniewsky, Axel ; Narojczyk, Jakub W. / Pressure-volume work for metastable liquid and solid at zero pressure. In: Entropy. 2018 ; Vol. 20, No. 5.
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