Five kg of water contained in a piston cylinder assembly expand from an initial state where T1=400 degree Celsius p1=700 kpa to a final state where T2=200 degree Celsius, p2=300kpa, with no significant effects of kinetic and potential energy. The accompanying table provides additional data at the two states. It is claimed that the water undergoes an adiabatic process between these states while developing work. Evaluate this claim.