Consider the equilibrium reaction represented by the equation: 2SO2(g) + O2(g) ⇌ 2SO3(g) ∆H = – 197 kJmol-1. At equilibrium, increase in the total pressure of the system brings about

A. decrease in rate of the reaction of the system
B. decrease in temperature of the system
C. increase in concentration of SO3
D. increase in concentration of SO2

Correct Answer: Option C

C. increase in concentration of SO3