Questions 31 and 32 should both be answered with reference to this equilibrium system. 2NH3(g) ↔ N2( — Equilibrium Chemistry Question

Questions 31 and 32 should both be answered with reference to this equilibrium system.
2NH₃(g) ↔ N₂(g) + 3H₂(g) Kp = 80.0 at 250 °C
What is Kp for this reaction?
1/2N₂(g) + 3/2H₂(g) ↔ NH₃(g)