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← ScienceWhich risk increases when a constant positive catalyst concentration is maintained in a reversible reaction chamber?
A)Equilibrium shifts to product side
B)High catalyst turnover occurs
C)Rate increase diminishes over time✓
D)Enthalpy change rises above zero
💡 Explanation
The rate increase progressively lessens toward equilibrium because the forward and reverse reaction rates converge as the product concentration increases due to the Le Chatelier's principle, therefore only a diminishing rate increase occurs, rather than equilibrium fully favouring products.
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