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

  • 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
waec 2000chemistry

The correct answer is D. Reduces the time for attainment of equilibrium

In the contact process above; a temperature of about 500ºC and use of Vanadium(V)Oxide catalyst increase the reaction rate and enable equilibrium to be reached in a shorter time.

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