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← ScienceWhich consequence results when zeolites catalyze reactions at increased temperatures?
A)Reduced active site surface area
B)Enhanced product selectivity is observed
C)Diffusion limitations increase sharply✓
D)Intraparticle concentration becomes uniform
💡 Explanation
When temperatures increase, *diffusion limitations* become prominent because high temperatures escalate the kinetic energy of reacting molecules. Therefore, molecules move faster, and pore diffusion constraints impact reactions greater, rather than increasing selectivity.
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