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← ScienceWhich equilibrium shift occurs when nickel catalysts degrade?
A)Reduced reactant adsorption near active sites✓
B)Accelerated reverse rate disproportionately
C)Equilibrium constant increase favours products
D)Decreased activation energy, forward favoured
💡 Explanation
Reduced reactant adsorption follows from catalyst degradation because surface area declines during catalyst poisoning, inhibiting the Langmuir-Hinshelwood mechanism. Therefore, less product is formed, rather than a specific rate change or activation decrease, given catalyst functionality loss.
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