QI A five kilograms of steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the specific internal energy is u, 2709.9 kJ/kg. to state 2, where u, 2659.6 kJ/kg. During the process, there is heat transfer to the steam with a magnitude of 80 kJ. Also, a paddle wheel transfers energy to the steam by work in the amount of 18.5 kJ. There is no significant change in the kinetic or potential energy of the steam. Determine the en- ergy transfer by work from the steam to the piston during the process, in kJ. S kg of steam "p ? Ww-18.5 kJ Q= +80 kJ "2709.9 klkg uy = 2659.6 k/kg

QI A five kilograms of steam contained within a piston-cylinder assembly undergoes an expansion from state 1, where the specific internal energy is u, 2709.9 kJ/kg. to state 2, where u, 2659.6 kJ/kg. During the process, there is heat transfer to the steam with a magnitude of 80 kJ. Also, a paddle wheel transfers energy to the steam by work in the amount of 18.5 kJ. There is no significant change in the kinetic or potential energy of the steam. Determine the en- ergy transfer by work from the steam to the piston during the process, in kJ. S kg of steam "p ? Ww-18.5 kJ Q= +80 kJ "2709.9 klkg uy = 2659.6 k/kg

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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