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← ScienceWhich outcome occurs when a catalyst degrades during continuous chemical processing?
A)Reaction rate gradually decreases.✓
B)Equilibrium shifts toward products.
C)Activation energy immediately increases
D)Reactant concentration becomes non-uniform.
💡 Explanation
Lower catalyst concentration reduces active sites, because the law of mass action posits that reduced surface areas decrease the **reaction rate**. Therefore, process output declines rather than promoting equilibria shift or increased activation energy, a catalyst breakdown affects reaction speed.
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