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Which outcome results when a catalyst adsorbs reactants?

A)Decreased activation energy for faster reactions
B)Increased reactant concentration at equilibrium
C)Altered stoichiometric coefficients of products
D)Endothermic reaction converted to exothermic

💡 Explanation

Catalyst adsorption lowers activation energy because it stabilizes the transition state via surface interactions, therefore the reaction proceeds faster with a lower energy barrier, rather than altering equilibrium or reaction enthalpies.

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