16. Two pounds of air at 100 psia occupy expands at a constant pressure until its volume is increased 300. per cent; after that the air expands adiabatically to 50 psi, and finally its pressure is reduced isochorically to 15 psi. Determine the changes of available and unavailable energy and of the entropy between the starting and final condi- tions. Assume the refrigerator temperature to be 70 F, and use everage specific heats for the temperature range involved. air. 18

16. Two pounds of air at 100 psia occupy expands at a constant pressure until its volume is increased 300. per cent; after that the air expands adiabatically to 50 psi, and finally its pressure is reduced isochorically to 15 psi. Determine the changes of available and unavailable energy and of the entropy between the starting and final condi- tions. Assume the refrigerator temperature to be 70 F, and use everage specific heats for the temperature range involved. air. 18

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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