The methane used to obtain H₂ for NH₃ manufacture is impure and usually contains other hydrocarbons, such as propane,C₃H₈. Imagine the reaction of propane occurring in two steps: \begin{equation}C₃H₈(g) + 3H₂O(g) ⇄ 3CO(g) + 7H₂(g) Kp = 8.175×10¹⁵ at 1200KCO(g) + H₂O(g) ⇄ CO₂(g) + H₂(g) Kp = 0.6944 at 1200k(b) Calculate Kp for the overall process at 1200. K.