Hydrogen is manufactured on an industrial scale from methane, as represented by the equation below. $\text{CH}_4(g) + \text{H}_2\text{O}(g) \rightleftharpoons \text{CO}(g) + 3\text{H}_2(g) \qquad \Delta H^{\circ} = +205\,\text{kJ mol}^{-1}$ Which conditions produce the greatest yield of hydrogen at equilibrium?
- Alow pressure, high temperature
- Bhigh pressure, low temperature
- Chigh pressure, high temperature
- Dlow pressure, low temperature