5. Air flows isentropically through the convergent-divergent nozzle in the figure below. The inlet pressure is 80 kPa, the inlet temperature 295 K, and the back pressure is 1.013 kPa. What should the exit diameter of the nozzle which corresponds to the maximum obtainable value of Mach number at the exit? What is the mass flow rate, the exit Mach number, and the exit temperature? d₁ = 1.5 cm d₂ = 1.0 cm d2 Throat