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Which outcome occurs when a fixed volume batch reactor's initial reactant concentration decreases significantly?

A)Reaction rate decreases exponentially
B)Equilibrium constant increases proportionally
C)Activation energy reduces linearly
D)Reaction order changes inversely

💡 Explanation

When the initial reactant concentration decreases, the forward reaction rate decreases because fewer reactant molecules are available for collision, meaning the reaction rate is exponentially reduced based on the first order kinetics law. Therefore reaction rate decreases rather than the equilibrium constant, activation energy or reaction order which are less sensitive within standard operations.

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