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← ScienceWhich outcome results from catalyst poisoning during ammonia synthesis in Haber-Bosch process?
A)Reduced reaction rate and catalyst deactivation✓
B)Increased equilibrium constant and yield
C)Elevated reactor temperature and pressure
D)Enhanced selectivity towards byproduct formation
💡 Explanation
When a catalyst poison binds to active sites, adsorption of reactants is blocked because the surface area available for reaction is significantly reduced, thus diminishing the catalytic activity causing reduced reaction rate and catalyst deactivation. Therefore reaction rate decreases, rather than increased yield, altered temperature profiles or enhanced byproduct formation which require a different reaction condition.
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