Methanol is produced by reacting carbon dioxide with hydrogen. $\text{CO}_2\text{(g)} + 3\text{H}_2\text{(g)} \rightleftharpoons \text{CH}_3\text{OH(g)} + \text{H}_2\text{O(g)} \quad \Delta H = -49\,\text{kJ mol}^{-1}$. Which change would raise the equilibrium yield of methanol in this process?
- Aadding a catalyst
- Badding an excess of steam
- Cincreasing the pressure
- Dincreasing the temperature