In thermodynamics, the Frenkel line is a proposed boundary on the phase diagram of a supercritical fluid, separating regions of qualitatively different behavior.[1] Fluids on opposite sides of the line have been described as "liquidlike" or "gaslike", and exhibit different behaviors in terms of oscillation, excitation modes, and diffusion.[2]
Other proposed similar boundary lines include for example the Fisher-Widom line and the Widom line.
- ^ Yoon, Tae Jun; Ha, Min Young; Lee, Won Bo; Lee, Youn-Woo (16 August 2018). ""Two-Phase" Thermodynamics of the Frenkel Line". The Journal of Physical Chemistry Letters. 9 (16): 4550–4554. arXiv:1806.07608. doi:10.1021/acs.jpclett.8b01955. PMID 30052454. S2CID 51727309.
- ^ Ghosh, Kanka; Krishnamurthy, C. V. (December 2019). "Frenkel line crossover of confined supercritical fluids". Scientific Reports. 9 (1): 14872. Bibcode:2019NatSR...914872G. doi:10.1038/s41598-019-49574-3. PMC 6795815. PMID 31619694.