The equation below represents the formation of sulfur trioxide in the contact process. $2\text{SO}_2(\text{g}) + \text{O}_2(\text{g}) \rightleftharpoons 2\text{SO}_3(\text{g}) \qquad \Delta H = -196\,\text{kJ mol}^{-1}$ Which change would reduce the yield of sulfur trioxide?
- Aaddition of more oxygen
- Ban increase in pressure
- Can increase in temperature
- Dremoval of sulfur trioxide from the reaction chamber