Abstract

The concentration of Rn in saturated solution in D2O at 101 325 Pa and 278.15–318.15 K (at 5 K interval) was estimated by the Karapet’yants method of comparative calculation from original and published data on the solubility of noble gases He-Xe in H/D water isotopomers and of Rn in H2O. Thermodynamic functions of Rn solvation (ΔsolG0, ΔsolH∞, ΔsolS0, and ΔsolCp∞) in H2O and D2O and the corresponding H/D isotope effects were calculated by the original method. The characteristics obtained for the D2O-Rn system are consistent with the previously found trends in variation of thermodynamic isotope effects of solvation of noble gases (He-Xe) in aqueous solution with increasing temperature.

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