Which consequence results when a platinum catalyst used in ammonia production loses surface hydrogen?

A)Reduced active site availability✓

B)Accelerated catalyst structural collapse

C)Increased total surface area greatly

D)Enhanced reactant diffusion to sites

💡 Explanation

Reduced active site availability results when surface hydrogen detaches, because *dissociative chemisorption* of hydrogen is required to create active sites for subsequent nitrogen adsorption. Therefore catalyst activity declines, rather than increases in surface area under this operating configuration.

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Which consequence results when a platinum catalyst used in ammonia production loses surface hydrogen?

💡 Explanation

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