Sulfur dioxide reacts with oxygen as shown. $\text{2SO}_2(g) + \text{O}_2(g) \rightleftharpoons \text{2SO}_3(g)$, $\Delta H^\circ = -197\ \text{kJ mol}^{-1}$. Which alteration will shift the equilibrium position to the right and alter the value of the equilibrium constant, $K_c$?
- Athe addition of a catalyst
- Bincreasing the pressure of the reaction
- Cdecreasing the temperature of the reaction
- Ddecreasing the concentration of product