the purpose of a nozzle is to produce a high velocity stream of fluid at the expense of its pressure. saturation vapour ammonia enters an insulated...

the purpose of a nozzle is to produce a high velocity stream of fluid at the expense of its pressure. saturation vapour ammonia enters an insulated nozzle at 803.5kPa with a low velocity and the steady rate of 0.01kg/s. the ammonia exits at 290.8kpa (density=651kg/m3) with a velocity of 450m/s

how do i find the exit area of the nozzle?