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← ScienceWhich outcome occurs when a packed-bed reactor exceeds its pressure limit?
A)Reaction runaway accelerates exponentially
B)Catalyst deactivation decreases reaction rate✓
C)Equilibrium shifts towards reactants favored
D)Selectivity improves undesired end products
💡 Explanation
The rate rapidly decreases should the reactor exceed its pressure limit. This is due to catalyst poisoning and pore blockage within the packed bed, because excess pressure causes physical damage; therefore reducing active surface area rather than allowing continued catalysis.
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