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← ScienceWhich outcome occurs when a platinum catalyst is used in a fixed-bed reactor?
A)Reaction completion accelerates disproportionately
B)Equilibrium shifts towards gaseous byproducts
C)Catalyst surface area decreases rapidly
D)Activation energy lowers without affecting yield✓
💡 Explanation
Platinum lowers the activation energy required for the surface reaction via heterogeneous catalysis, which accelerates reaching equilibrium between reactants and products; therefore, the reaction proceeds faster, rather than causing any shift in final thermodynamic equilibrium favoring specific gaseous products.
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