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← ScienceWhich consequence results when a catalyst deactivates in an industrial methanol synthesis process?
A)Reaction rate decreases proportionally.
B)Equilibrium shifts towards reactants.
C)Activation energy threshold increases.✓
D)System temperature abruptly decreases.
💡 Explanation
Catalyst deactivation causes an increase in the activation energy because it reduces the number of active sites available for reactant adsorption. Therefore, the activation energy increases, rather than the equilibrium shifting, which depends solely on thermodynamics.
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