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Ammonia vapor enters an insulated nozzle at 20o C and 800 kPa with a low velocity and a flow rate of 0.01 kg/s. It exits

Ammonia vapor enters an insulated nozzle at 20o C and 800 kPa with a low velocity and a flow rate of 0.01 kg/s. It exits at 300 kPa with a velocity of 450 m/s.

a. What is the phase of ammonia exiting the nozzle?

b. If it is superheated, determine its temperature; if it is saturated, determine its quality.

c. Determine the exit area of the nozzle

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