A rigid tank insulated from the sides is divided into 2 compartments, One compartment contains 10 kg of oxygen gas at 40°C and 100 KPa and the other partition contains 6 kg of nitrogen gas at 20°C and 150 kPa. Gas is allowed to mix by removing the partition. Calculate mixture pressure after equilibrium is reached in KPa. \(C_{V_{O_2}}\) = 0.658 KJ/kjK, \(C_{V_{N_2}}\) = 0.743 KJ/Kj K