題組內容

4. 4 kg of nitrogen is contained in an insulated rigid tank at 1 MPa and 30℃. A valve is now opened, and nitrogen is allowed to escape until the pressure reach 500 kPa. Please determine:

(b) (7%) The amount of mass that escapes the tank. For nitrogen, 61305f54901e3.jpgMPa. Please state clearly all of your assumptions.