Accession Number:

AD0261055

Title:

MEASUREMENT OF THE DISSOCIATION RATES OF HYDROGEN AND DEUTERIUM

Descriptive Note:

Corporate Author:

CORNELL UNIV ITHACA N Y

Personal Author(s):

Report Date:

1960-12-01

Pagination or Media Count:

1.0

Abstract:

Using an in rferometer and drum camera to measure the density ratio behind an incident shock wave in mixtures of argon and h drogen, the dissociation rates for two isotopes of hydrogen have been meas red. Sufficient data w re obtained to measure the rate constants for the reaction in a temperature range from 2800 K to 4500 K. The relative efficiencies of argon, the hydrogen molecule, and the hydrogen atom in dissociating hydrogen have been found for each isotope. The rate constants for the hydrogen molecule and the argon atom as third bodies for association were found to have a simple 1T depen ence. The rate constants for the collision of three atoms causing association were found to be much larger t an the other rate constants and to have a more involved temperature dependence. The rate constant for the association of hydrogen where the third body is a hydrogen atom shows a marked change in its rate of decrease at about 3400 K. A thor

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Distribution Statement:

APPROVED FOR PUBLIC RELEASE