Two tanks are connected Part A tank is having 0.5 m3 containing hydrogen at 40oC, 200 kPa

Question:

Two tanks are connected Part A tank is having 0.5 m3 containing hydrogen at 40oC, 200 kPa is connected to Part B tank having 1 m3 rigid tank containing hydrogen at 20oC, 600 kPa. The valve is opened and the system is allowed to reach thermal equilibrium with the surroundings at 15oC. Determine.
(a) The final pressure.
(b) Heat transfer.
(c) The entropy generated during the mixing process. Use the PG model.