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← ScienceWhich limit exists as the Arrhenius equation constant 'A' increases within an industrial catalytic reactor?
A)Substrate diffusion rate limitations increase✓
B)Product equilibrium shifts to reactants
C)Catalyst surface area becomes irrelevant
D)Activation energy remains unchanged drastically
💡 Explanation
Increasing 'A', the pre-exponential factor, boosts the reaction rate; surface reaction acceleration can't outpace reactant availability because mass transport becomes the limiting factor, therefore, diffusion rate limitations increase rather than the reaction progressing unimpeded or equilibrium state change.
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