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← ScienceWhich outcome results when using a powdered catalyst in a reactor?
A)Reaction rate increases due to adsorption✓
B)Equilibrium constant shifts unfavorably
C)Activation energy barrier increases sharply
D)Catalyst deactivation rate becomes negligible
💡 Explanation
The reaction rate increases because powdered catalysts provide increased surface area for adsorption—a type of Physisorption. This lowers free energy rather than changing the equilibrium. Therefore a higher surface enhances the reaction rate, rather than decreasing it.
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