3. An empty 100-L tank is connected to a line flowing air (an ideal gas) at 300 K and 6 MPa. The valve is opened and the air starts to flow into the tank. The valve is closed when the pressure inside...

Extracted text: 3. An empty 100-L tank is connected to a line flowing air (an ideal gas) at 300 K and 6 MPa. The valve is opened and the air starts to flow into the tank. The valve is closed when the pressure inside reaches 5 MPa. This filling process occurs so fast that it can be assumed as adiabatic (i.e., no heat transfer). At the point when the valve is closed, what is the temperature and mass of air inside the tank?