Step 1 of the Ostwald process for nitric acid production is4NH₃(g) + 5O₂(g) | Pt/Rh catalyst → 4NO(g) + 6H₂O(g) An unwanted side reaction for this step is4NH₃(g) + 3O₂(g) → 2N₂(g) + 6H₂O(g)(b) Calculate Kp for these two NH₃ oxidations at 900.°C.