# Air enters a nozzle steadily at 2.21 kg/m3 and 40 m/s and leaves at 0.762 kg/m3 and 180 m/s. If the inlet area of the nozzle is 90 cm2, determine (a) the mass flow rate through the nozzle, and (b) the exit area of the nozzle.

Question-AnswerCategory: Fluid MechanicsAir enters a nozzle steadily at 2.21 kg/m3 and 40 m/s and leaves at 0.762 kg/m3 and 180 m/s. If the inlet area of the nozzle is 90 cm2, determine (a) the mass flow rate through the nozzle, and (b) the exit area of the nozzle.

Air enters a nozzle steadily at 2.21 kg/m3 and 40 m/s and leaves at 0.762 kg/m3 and 180 m/s. If the inlet area of the nozzle is 90 cm2, determine (a) the mass flow rate through the nozzle, and (b) the exit area of the nozzle.

Step: 1

Given data
The density at the inlet of the nozzle The velocity at the inlet is The inlet area The density at the outlet of the nozzle The velocity at the outlet is Step: 2

(a)
The mass flow rate    Step: 3

(b) The exit area of the nozzle
Since the process is steady mass flow rate remains constant in the nozzle, the exit area can be determined as    