A converging-diverging nozzle with an exit area of 35 cm2 and a throat area of 10 cm2,

Question:

A converging-diverging nozzle with an exit area of 35 cm2 and a throat area of 10 cm2, is attached to a reservoir which contains air at 700 kPa and 20oC absolute. Determine
(a) The associated exit temperatures and
(b) Velocities.
(c) The two exit pressures that result in M = 1 at the throat for an isentropic flow,