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On the interpretation of vibrational relaxation times

Teitelbaum, Heshel

Canadian journal of chemistry, 1983-06-01, Vol.61 (6), p.1253-1266 [Periódico revisado por pares]

Ottawa, Canada: NRC Research Press

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  • Título:
    On the interpretation of vibrational relaxation times
  • Autor: Teitelbaum, Heshel
  • Assuntos: Atomic and molecular collision processes and interactions ; Atomic and molecular physics ; Exact sciences and technology ; Physics ; Scattering of atoms, molecules and ions
  • É parte de: Canadian journal of chemistry, 1983-06-01, Vol.61 (6), p.1253-1266
  • Descrição: Rate laws for the evolution of vibrational energy level populations are derived when the Bethe-Teller law is obeyed. It is assumed that a Boltzmann distribution is maintained via rapid V-V processes. A variety of different rate laws result depending on the size and direction of the perturbation, the extent from equilibrium, and how classical the oscillator is at the initial and final conditions. An earlier analysis by Breshears is shown to be a special case. A prescription is given for procedures to compare relaxation times obtained from shock tube experiments and from laser-induced fluorescence experiments, when T-V energy transfer processes are rate-determining. Corrections for thermal effects are included. Shock tube, fluorescence, and chemical activation experiments are proposed which provide meaningful conditions for testing the Bethe-Teller law and for testing the existence of a Boltzmann distribution.
  • Editor: Ottawa, Canada: NRC Research Press
  • Idioma: Inglês

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