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← ScienceWhich outcome results when an industrial catalytic reactor runs at excessively high inflow of reactants?
A)Catalyst poisoning accelerates disproportionately
B)Equilibrium shifts towards reactant formation
C)Temperature gradients reach dangerous levels✓
D)Product selectivity becomes thermodynamically limited
💡 Explanation
Excessive reactant inflow overwhelms heat removal capacity, so a runaway exothermic reaction occurs because heat generation exceeds heat dissipation leading to ‘thermal-runaway’. Therefore, temperature gradients increase, rather than other kinetic limitations, because catalyst activity remains largely unaffected under short excursions.
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