Which process diminishes catalyst efficiency when hydrogen sulfide is present?

💡 Explanation

Surface poisoning reduces catalyst efficiency because hydrogen sulfide molecules preferentially adsorb onto reactive sites, blocking the desired reactants. Therefore, the catalytic reaction slows, rather than improving through area, kinetics or energy changes.

• Which loss occurs when throttling steam within Rankine cycle turbines?
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• Which outcome primarily limits the tensile strength of a polymer composite under extreme stretching?
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