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← ScienceWhich mechanism hinders methanol production when excessive carbon monoxide concentration exists?
A)Competitive adsorption reduces catalyst surface area✓
B)Kinetic isotope effect slows reaction rate
C)Reactive distillation favours byproduct formation
D)Thermal runaway increases reactor temperature
💡 Explanation
Overloading CO causes competitive adsorption, decreasing the effective surface area of the catalyst for methanol formation on active sites because CO outcompetes H₂ for adsorption; therefore, methanol production decreases, rather than effects from isotope effects or thermal conditions.
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