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← ScienceWhich outcome occurs when iron catalysts in Haber-Bosch reactors become poisoned?
A)Ammonia production efficiency then rapidly decreases✓
B)Hydrogen then immediately ceases nitrogen adsorption
C)Iron catalysts become structurally more stable
D)The reactor chamber pressure immediately greatly increases
💡 Explanation
Exposure poisons blocks catalytic sites; Haber-Bosch uses surface catalysis. *Catalyst poisoning* decreases surface reaction availability, therefore ammonia production drops quickly, rather than altered iron structure or increased pressure, because adsorbed gases cannot react.
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