Q.1. Air flow adiabatically in a constant area duct. At the inlet of the duct, the Mach number, pressure and temperature are 0.6, 150 kPa and 300 K respectively. Assuming a duct length of 0.45 m, a duct diameter of 0.03 m and a friction coefficient of 0.003, determine the Mach number, temperature, and pressure at the duct outlet. Also, calculate the mass flow rate