In a study of the reaction 3Fe (s) + 4H 2 O(g) ⇌ Fe 3 O 4 (s) + 4H 2 (g) at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0 torr, the total pressure at...

In a study of the reaction

3Fe (s) + 4H₂O(g) ⇌ Fe₃O₄
(s) + 4H₂
(g)

at 1200 K it was observed that when the equilibrium partial pressure of water vapor is 15.0 torr, the total pressure at equilibrium is 36.3 torr. Calculate the value of
K
_p
for this reaction at 1200 K.