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← ScienceWhich outcome occurs when a catalyst added to a reaction reaches its saturation point given constant reactant concentrations?
A)Reaction rate plateaus to maximum value✓
B)Equilibrium shifts towards product formation
C)Activation energy increases linearly
D)Reverse reaction rate becomes dominant
💡 Explanation
When a catalyst reaches saturation, surface active sites become fully occupied because additional catalyst cannot increase reactant adsorption or conversion leading to a maximum reaction rate. Therefore the reaction rate plateaus, rather than a shift, increased energy, or reverse dominance, which are governed by thermodynamic reaction properties independent of catalyst saturation.
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