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2SO2(g) + O2(g) ↔ 2SO3(g)
ΔH = -189 kJ m...

2SO2(g) + O2(g) ↔ 2SO3(g)
ΔH = -189 kJ mol-1
The equilibrium constant for the reaction above is increased by?

A.

decreasing the temperature of the system

B.

Increase the pressure of the system

C.

The addition of a catalyst to the system

D.

Increasing the surface area of the vessel

Correct answer is A

Decrease in temperature favors in Equilibrium Constant[k] for this exothermic reaction.