Nitrogen gas enters a well-insulated diffuser steadily at 60 lbfíin2, 520°r, with a velocity of 800 ft's through a flow area of 3 in2 at the exit, the flow area is 10 times the inlet area, and the velocity is 50 ftls. the potential energy change from inlet to exit is negligible. assuming ideal gas behavior for the nitrogen gas, determine the following a) temperature at the exit, in'r b) pressure at the exit, in lbf/in2 c) mass flow rate of nitrogen, in lb/s 20 pts] 5 pts] 5 pts solve the problem using a variable specific heat analysis, show interpolation steps, as needed