A large air supply line at 350 K and 0.5 MPa is connected to the inlet of a well insulated .002 m^3 tank. The tank has mass flow controllers on the inlet and outlet. The tank is at 300K and .1 MPa. Both valves are rapidly and simultaneously switched open to a flow of 0.1 mol/min. Model air as an ideal gas with Cp=29.3 J/molK and calculate the pressure and temperature as a function of time. How long does it take until the tank is within 5K of the steady-state value?