A2m3 rigid tank initially contains air (r=0.287 kj/kg. k) at 100 kpa and 22 oc. the tank is connected to a supply line through a valve. in the supply line, air is flowing at 600 kpa and 22 oc. the valve is opened and air is allowed to enter the tank until the tank pressure reaches the same pressure of the supply line at which point the valve is closed. a thermometer is placed in tank and read 77 oc once the valve is closed. determine: a) the mass of air entered the tank b) the amount of heat transfer out of tank. note: you can use either air tables or (cp = 1.005 kj/kg. k & cv = 0.718 kj/kg. k)