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← ScienceWhich mechanism causes increased alkane cracking when zeolite catalysts overheat?
A)Increased vibrational mode excitation✓
B)Decreased catalyst surface area
C)Enhanced reactants adsorption strength
D)Reduced pore diffusion limitations
💡 Explanation
Increased alkane cracking occurs because rising temperatures leads to increased vibrational mode excitation, breaking C-C bonds more readily; therefore, the reaction accelerates, rather than slowing from diffusion limitations or surface area reduction.
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