"a mass-loaded piston-cylinder system containing air is at 40 lbf/in^2" , 500 °r with a volume of 11 ft3 , while at the stops v = 38 ft3 . an air supply line at 1040 °r is connected to the system by a valve. the valve is then opened until a final pressure of 55 lbf/in.2 at t = 620 °r is reached inside the piston-cylinder assembly. determine (a) the air mass that enters, (b) the work done in btu, and (c) the heat transfer in btu. (hint: the air is modeled as an ideal gas and the pressure is constant until it reaches to the final pressure). Get the answer
Category: geography | Author: Sagi Boris