Air from a line at 12 MPa, 15'C flows into a 500 Lrigid tank that injtially contained air at ambient con-aiiions, 100 kPa, 15'C' Tire process occurs rapidll'and is essentially adiabatic' The valve is ciosedwhen the pressure inside reaches some value' P:'The tank eventually cools to room temperature' alwhich time the pressure inside is 5 MPa. What isthe pressure PzWhatis the net entropy change forthe overall Process?