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← ScienceWhich consequence results when a platinum catalyst degrades?
A)Increased activation energy needed✓
B)Faster equilibrium achievement timing
C)Decreased equilibrium constant observed
D)Elevated reaction vessel temperature
💡 Explanation
With the loss of catalyst surface area, increased activation energy is required because catalytic activity decreased. Therefore, overall reaction rate slows, rather than driving temperature increases or shifting equilibrium; equilibrium is about thermodynamics, not kinetics.
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