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Air at 5 2 3 K and 6 1 3 kPa enters a nozzle at a velocity of 1 3 9 m / s and

Air at

523

K and

613

kPa enters a nozzle at a velocity of

139

/

s and exits at

393

/

.

The inlet area of the nozzle is twice the outlet area. To determine:

1)

The specific enthalpy and temperature of the air at the exit.

2)

The specific volumes at the entrance and exit

3)

The air outlet pressure

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