Which mechanism explains increased ethylene production in catalytic cracking?

💡 Explanation

Increased ethylene results from surface adsorption and reaction enabled by the Langmuir-Hinshelwood reaction; the catalyst provides an alternative reaction pathway, because reactants adsorb onto its surface facilitating bond breakage and ethylene formation, therefore A is correct rather than altered reaction rates in the bulk phase.

• Which interference pattern results if coherence length decreases in spectral interferometry?
• Which outcome occurs when a supercritical fluid within a closed-loop power cycle passes through a turbine?
• Which risk increases when an ammonia-based absorption chiller cycle operates with insufficient generator heat?
• Which outcome weakens lubrication when hydraulic fluid heats?
• Which outcome arises when an aluminum alloy's passivation layer degrades?
• Which impedance mismatch becomes significant in nanoscale CMOS transistors?