Theory of warm ionized gases: Equation of state and kinetic Schottky anomaly
- Author(s)
- A. Capolupo, S. M. Giampaolo, F. Illuminati
- Abstract
Based on accurate Lennard-Jones-type interaction potentials, we derive a closed set of state equations for the description of warm atomic gases in the presence of ionization processes. The specific heat is predicted to exhibit peaks in correspondence to single and multiple ionizations. Such kinetic analog in atomic gases of the Schottky anomaly in solids is enhanced at intermediate and low atomic densities. The case of adiabatic compression of noble gases is analyzed in detail and the implications on sonoluminescence are discussed. In particular, the predicted plasma electron density in a sonoluminescent bubble turns out to be in good agreement with the value measured in recent experiments.
- Organisation(s)
- Particle Physics
- External organisation(s)
- Università degli Studi di Salerno, Istituto Nazionale di Fisica Nucleare (INFN), Roma, National Interuniversity Consortium for the Physical Sciences of Matter
- Journal
- Physical Review E
- Volume
- 88
- No. of pages
- 6
- ISSN
- 1539-3755
- DOI
- https://doi.org/10.1103/PhysRevE.88.042132
- Publication date
- 10-2013
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 103022 Plasma physics, 103029 Statistical physics
- Keywords
- Portal url
- https://ucris.univie.ac.at/portal/en/publications/theory-of-warm-ionized-gases-equation-of-state-and-kinetic-schottky-anomaly(f7bbd742-e817-4fc0-8496-8d25848cdb1a).html