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← ScienceWhich outcome slows down when catalyst deactivation occurs?
A)Forward reaction rate decreases✓
B)Equilibrium constant increases instead
C)Reverse reaction rate accelerates
D)Activation energy threshold is lowered
💡 Explanation
When a catalyst deactivates, the active sites diminish, thus lowering the frequency of successful reactant collisions; therefore the forward reaction rate decreases because the surface area for catalysis is diminished, rather than equilibrium shifting or activation energy changing.
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