Rotational relaxation in HD--inert gas mixtures

Journal Article · Thu Jul 15 04:00:00 EDT 1976 · J. Chem. Phys.; (United States)

DOI:https://doi.org/10.1063/1.433080· OSTI ID:7270110

Agrawal, P M; Saksena, M P

An expression for the inelastic collision cross section sigma (lm..-->..l'm') has been derived for the rotational transition in the HD molecule caused by a collision with an inert gas atom. The interaction potentials for the HD systems have been derived from the theoretical potentials for the H/sub 2/ systems by shifting the center of mass of the molecule. The rotational relaxation number values have been calculated for HD--He, HD--Ne, and HD--Ar systems in the temperature range from 10 to 100 degreeK. A good agreement has been obtained between theory and experiment. Temperature dependence and the effect of replacement of an isotope in a homonuclear molecule have been discussed in detail. (AIP)

• Research Organization: Department of Physics, MLV Govt. College, Bhilwara, Rajasthan, India
• OSTI ID: 7270110
• Journal Information: J. Chem. Phys.; (United States), Journal Name: J. Chem. Phys.; (United States) Vol. 65:2; ISSN JCPSA
• Country of Publication: United States
• Language: English

Related Subjects

640304* -- Atomic
Molecular & Chemical Physics-- Collision Phenomena
74 ATOMIC AND MOLECULAR PHYSICS
ARGON
ATOM COLLISIONS
ATOM-MOLECULE COLLISIONS
COLLISIONS
CRYOGENIC FLUIDS
DEUTERIDES
DEUTERIUM COMPOUNDS
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
HELIUM
HYDROGEN COMPOUNDS
HYDROGEN DEUTERIDE
MATHEMATICAL MODELS
MOLECULE COLLISIONS
NEON
NONMETALS
RARE GASES
RELAXATION
ROTATIONAL STATES