A diffuser shown in Fig P6.20 has air entering at 14.7 lbf/in 2, 540 R, with a velocity of 600 ft/s. The inlet cross-sectional area of the diffuser is 0.2 in 2. At the exit, the area is 1.75 in 2, and the exit velocity is 60 ft/s. Determine the exit pressure and temperature of the air.