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Direct reaction of gas‐phase atomic hydrogen with chemisorbed hydrogen on Ru(001)
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24.This initial adsorption probability cannot be measured directly due to the much greater flux of molecular hydrogen, compared to atomic hydrogen, onto the surface and the fact that the probability of dissociative chemisorption of the molecular hydrogen is high. We expect the initial probability of chemisorption of atomic hydrogen to be very nearly unity since the adsorption is unactivated and is exothermic by approximately 65 kcal/mol.
25.The atomic flux is approximately 5% of the molecular flux and is entirely consistent with our crude estimate of an atomic flux of 1%–10% of the molecular flux for our experimental configuration and operating conditions.
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