A sealed container with the gases at equilibrium at 298 K contains P_N2O4 = 0.512 atm and P_N2O = 0.0607 atm. A second container, under the same temperature, contains P_N2O4 = 0.163 atm and P_N2O = 0.0342 atm. The gases follow the reaction: N₂O₄(g) ⇌ 2 N₂O(g). Identify if the second reaction is at equilibrium. If it is not in equilibrium, calculate the equilibrium partial pressure of N₂O.