20- Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 50 m/s and exits at 85 kPa and 320 m/s. The heat losses from the nozzle to the surrounding medium at 20°C are estimated to be 3.2 kJ/kg. Determine (a) the exit temperature and (b) the total entropy change for this process

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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20- Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 50
m/s and exits at 85 kPa and 320 m/s. The heat losses from the nozzle to
the surrounding medium at 20°C are estimated to be 3.2 kJ/kg. Determine
(a) the exit temperature and (b) the total entropy change for this process
Transcribed Image Text:20- Air enters a nozzle steadily at 280 kPa and 77°C with a velocity of 50 m/s and exits at 85 kPa and 320 m/s. The heat losses from the nozzle to the surrounding medium at 20°C are estimated to be 3.2 kJ/kg. Determine (a) the exit temperature and (b) the total entropy change for this process
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