Within the Contact process, sulfur dioxide is changed into sulfur trioxide in a reversible reaction. $2\text{SO}_2(g) + \text{O}_2(g) \rightleftharpoons 2\text{SO}_3(g)$ This forward reaction is exothermic. What conditions produce the greatest equilibrium yield of sulfur trioxide?
- Apressure $0.5$ atmospheres, temperature high
- Bpressure $0.5$ atmospheres, temperature low
- Cpressure $1.5$ atmospheres, temperature high
- Dpressure $1.5$ atmospheres, temperature low