Physics
Scientific paper
Dec 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufm.p33e1806h&link_type=abstract
American Geophysical Union, Fall Meeting 2011, abstract #P33E-1806
Physics
[5470] Planetary Sciences: Solid Surface Planets / Surface Materials And Properties, [6281] Planetary Sciences: Solar System Objects / Titan
Scientific paper
The solubility of argon in liquid methane and ethane has been experimentally determined at 94 K. The solubilities are very large: 47% in methane and 15% in ethane, making the lakes of Titan an important potential reservoir of 40Ar. The amount of argon in the Titan lakes can be several times the atmospheric amount. After describing the experimental results, we will compare them with available models for vapor-liquid equilibria in the CH4-N2-Ar system. Using the data obtained on the solubility of argon in ethane, we will also derive implications for calculating the vapor-liquid equilibria in the C2H6-N2-Ar system. We eventually discuss the reasons for such high solubilities in terms of Hildebrand solubility parameters and the implications for Titan's surface chemistry and evolution.
Beauchamp Patricia M.
Choukroun Mathieu
Hodyss R. P.
Sotin Ch.
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