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← ScienceWhich outcome arises when a catalyst surface area decreases disproportionately in a continuous stirred-tank reactor processing reactants?
A)Lower overall reaction conversion rate✓
B)Increase in activation energy threshold
C)Exothermic reaction temperature amplifies greatly
D)Homogeneous catalysis becomes highly favored
💡 Explanation
Lower surface area causes a decrease in active sites, therefore the reaction rate declines due to reduced reactant adsorption rather than enhanced activation energy or homogeneous transition because the reaction's mechanism itself did not change.
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