The vibrational relaxation of HCl has been studied in both liquid Xe at 289 K and supercritical Xe at 291 K. The rate of relaxation of HCl(v = 1) in supercritical Xe is identical to the relaxation rate in the liquid-phase at a common density. These results are consistent with the predictions of an isolated binary collision model for this system. This prediction is valid even if, as expected, HCl-Xe complexes are present in both the liquid and supercritical fluid as long as the nature and concentration of the complexes depend only on density and temperature.
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Physical and Theoretical Chemistry