Accession Number : AD0620942

Title :   VIBRATIONAL RELAXATION OF HI, 1400-2300K,

Corporate Author : BROWN UNIV PROVIDENCE R I METCALF CHEMICAL LABS

Personal Author(s) : Chow,C. C. ; Greene,E. F.

Report Date : 23 MAR 1965

Pagination or Media Count : 9

Abstract : The vibrational relaxation of HI in a mixture of 10% HI in Ar was studied by following the populations of the four lowest vibrational states as they approach their equilibrium values after the abrupt heating produced by a shock wave. The states v=1, 2, and 3 all relax approximately exponentially with the same rate constant. As the temperature increases from 1400K to 2300K, k1 approximately triples. This temperature dependence is very much smaller and the rate is very much faster than the values predicted on the basis of the Schwartz-Slawsky-Herzfeld theory or the empirical correlation of Millikan and White. (Author)

Descriptors :   (*HYDROGEN COMPOUNDS, IODIDES), (*IODIDES, RELAXATION TIME), CHEMICAL EQUILIBRIUM, CHEMICAL BONDS, VIBRATION, SHOCK WAVES, HEATING, ATOMIC ENERGY LEVELS, REACTION KINETICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE