Hydrogen may be produced when methane reacts with steam. $\text{CH}_4(g) + \text{H}_2\text{O}(g) \rightleftharpoons \text{CO}(g) + 3\text{H}_2(g)$ $\Delta H^\circ = +210\,\text{kJ mol}^{-1}$ Which pressure and temperature conditions will produce the highest equilibrium yield of hydrogen?
- Ahigh pressure, high temperature
- Bhigh pressure, low temperature
- Clow pressure, high temperature
- Dlow pressure, low temperature