DIFFUSION AND HETEROGENEOUS REACTION. VI. SURFACE RECOMBINATION IN THE PRESENCE OF DISTRIBUTED ATOM SOURCES.
STANFORD RESEARCH INST MENLO PARK CALIF
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A theoretical analysis is made of the simultaneous removal of atoms by a first-order, heterogeneous reaction and their generation by a second-order, gas-phase reaction. Such a model is found applicable to a system in which hydrogen atoms recombine on the walls of a cylindrical vessel in the presence of hydroxyl radicals which may interact in the gas by reaction with hydrogen molecules. The perturbation of the hydrogen-atom concentration profile in the cylinder due to OH as measured by electron spin resonance spectroscopy is employed to calculate the rate constant for the gasphase reaction OH H2 yields H2O H. Author