During sulfuric acid manufacture, the reaction $\text{2SO}_2\text{(g)} + \text{O}_2\text{(g)} \rightleftharpoons \text{2SO}_3\text{(g)}$ is normally carried out at $400\,^{\circ}\text{C}$ and $1\,\text{atm}$ pressure. In an industrial plant, the pressure is altered to $20\,\text{atm}$. What consequences would this change have?
- A1, 2 and 3
- B1 and 2 only
- C2 and 3 only
- D1 only