What is the effect of using vanadium (V) oxide as catalyst in the reaction represented by the following equation? 2SO2 + O2 ⇌ 2SO3; ∆H = – xKJmol-1

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A. Decreases the value of ∆H
B. Increases the collision rate of reactant particles
C. Shifts equilibrium position to the right
D. Reduces the time for attainment of equilibrium

Correct Answer: Option A

A. Decreases the value of ∆H

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