Abstract
A new adsorption-desorption method for determining the efficiency of H 2 thermal dissociation on a hot metal surface is proposed. The results obtained by means of this method confirm the validity of Langmuir's equation describing H 2 atomization on a hot tungsten surface within the temperature range 1020–1315 K at a H 2 pressure of 2 × 10 −3 torr. A comparison of our results with Brennan-Fletcher's equation gives lower values for the efficiency of H 2 atomization.
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