2018/10/31 by E. Navarro, Emilio Alvarez Navarro, Bogar Díaz +2
Chemistry · Earth and Planetary Sciences · Physics and Astronomy · #Adiabatic process #Astro and Planetary Science #Astrobiology #Atmospheric Ozone and Climate #Atmospheric sciences #Chemistry #Lapse rate #Physics #Planetary Science and Exploration #Thermodynamics #Titan (rocket family) #Venus #Virial coefficient #astro-ph.EP #physics.ao-ph
paper · pdf · doi:10.1140/epjp/i2019-12826-4
published as Eur. Phys. J. Plus (2019) 134: 458 · 11 pages, 8 figures
openalex publication_date 2019/09/01 · arxiv created 2020/12/23 · arxiv updated 2020/12/24 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the effect of the second virial coefficient on the adiabatic lapse rate of a dry atmosphere. To this end, we compute the corresponding adiabatic curves, the internal energy, and the heat capacity, among other thermodynamic parameters. We apply these results to Earth, Mars, Venus, Titan, and the exoplanet G1 851d, considering three physically relevant virial coefficients in each case: the hard-sphere, van der Waals, and the square-well potential. These examples illustrate under which atmospheric conditions the effect of the second virial coefficient is relevant. Taking the latter into account yields corrections towards the experimental values of the lapse rates of Venus and Titan in some instances.