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Vibrational Kinetics, Dissociation, and Ionization of Diatomic Molecules Under Nonequilibrium Conditions

  • M. Cacciatore
  • M. Capitelli
  • S. De Benedictis
  • M. Dilonardo
  • C. Gorse
Part of the Topics in Current Physics book series (TCPHY, volume 39)

Abstract

This chapter deals with the study of nonequilibrium vibrational distributions created by the so-called vibration-vibration (V-V) up-pumping mechanism [2.1] (or Treanor’s mechanism) and with the effects of such a mechanism on chemical reactions of diatomic molecules. Treanor’s mechanism is responsible for the overpopulation of the vibrational distribution of a diatomic molecule under physical conditions characterized by large vibrational temperatures [θ1 = E10/k ln(N0/N1)] and small transiational ones (Tg). (E10 is the energy difference between level 1 and level 0, N1 and N2 being the corresponding population densities; k is Boltzmann’s constant.) Indeed, in this case V-V energy exchanges are more effective than vibration-translation (V-T) ones thus creating a quasi-stationary vibrational distribution made up of a Treanor’s distribution for the low-lying vibrational levels, a plateau, and a tail. The extension of this plateau depends on the effectiveness of V-V rates in overcoming the V-T ones [2.2–5].

Keywords

Electrical Discharge Rate Coefficient Vibrational Energy Vibrational Level Diatomic Molecule 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1986

Authors and Affiliations

  • M. Cacciatore
  • M. Capitelli
  • S. De Benedictis
  • M. Dilonardo
  • C. Gorse

There are no affiliations available

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