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← ScienceWhich mechanism causes increased methanol production from syngas when using a copper-zinc oxide catalysts at specific temperatures?
A)Increased active site availability✓
B)Enhanced mass transport limitations
C)Reduced catalyst surface area
D)Decreased equilibrium constant
💡 Explanation
When the copper-zinc oxide catalyst is at an optimal temperature, the metal oxide reduction occurs that increase catalytic activity, causing increased surface area and number of active sites available for reaction per catalyst grain. Therefore, increased active site availability increases methanol production, rather than transport, reduced area or different equilibrium which hinder this process.
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