The recently introduced compressible electrostatic continuum solvation model [J. Phys. Chem. 1996, 100, 1165] is found to accurately reproduce molecular simulation predictions [Flanagin et al. J. Phys. Chem. 1995, 99, 5196] of the solvation energies and nonstructural density distributions for the title reaction under supercritical conditions. The compressible continuum model is unique in its ability to isolate the importance of the solvent-solute clustering in defining the energetics of this reaction at different thermodynamic states. The thermodynamic conditions required for application of the model are also discussed.