It is proposed to have carbon dioxide (CO2) gas pass through an uninsulated nozzle. The CO2 is to enter at 307 K, 400 kPa, at a velocity of 6 m/s. The CO2 is to exit the nozzle at 382 K, 105 kPa, and a velocity of 115 m/s. The mass flow rate of the CO2 is 0.25 kg/s. The nozzle surface is maintained at 350 K. The change in specific entropy is____ k..... to 40.864 d.p. Use cold-air standard analysis and Take R= 0.1889 kJ/kgK and Cp=0.846 kJ/kgKProvide the unit symbol.

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Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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It is proposed to have carbon dioxide (CO₂) gas pass through an uninsulated nozzle. The CO₂ is to enter at 307 K, 400 kPa, at a velocity of 6 m/s. The CO₂ is to exit the nozzle at 382 K, 105 kPa, and a velocity of 115 m/s. The mass flow rate of the CO₂ is 0.25 kg/s. The nozzle surface is maintained at 350 K.

The change in specific entropy is____ k..... to 40.864 d.p.

Use cold-air standard analysis and Take R= 0.1889 kJ/kgK and Cp=0.846 kJ/kgK

Provide the unit symbol.

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