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The figure shows a system with a working impeller. The system is adiabatic and at constant pressure. The system contains 0.3 lbm of air at 20 psi and the temperature rises from 500 °R to 750 °R after receiving 14004 ft-lbf of work. Calculate a) total work, b) mechanical work, c) change in internal energy, and d) enthalpy change for the system.

The figure shows a system with a working impeller. The system is adiabatic and at constant pressure. The system contains 0.3 lbm of air at 20 psi and the temperature rises from 500 °R to 750 °R after receiving 14004 ft-lbf of work. Calculate a) total work, b) mechanical work, c) change in internal energy, and d) enthalpy change for the system.

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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ThermoDynamics 1

The figure shows a system with a working impeller. The system is adiabatic and at constant pressure. The system contains 0.3 lbm of air at 20 psi and the temperature rises from 500 °R to 750 °R after receiving 14004 ft-lbf of work. Calculate a) total work, b) mechanical work, c) change in internal energy, and d) enthalpy change for the system.
Transcribed Image Text:The figure shows a system with a working impeller. The system is adiabatic and at constant pressure. The system contains 0.3 lbm of air at 20 psi and the temperature rises from 500 °R to 750 °R after receiving 14004 ft-lbf of work. Calculate a) total work, b) mechanical work, c) change in internal energy, and d) enthalpy change for the system.
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