2 kg of air at 5 bar, 80°C expands adiabatically in a closed system until its volume is doubled and its temperature becomes equal to that of the surroundings which is at 1 bar, 5°C. For this process, determine : (i) The maximum work ; (ii) The change in availability ; (iii) The irreversibility. For air take : cv= 0.718 kJ/kg K, u = cvT, where cv is constant and pV = mRT, where p is in bar, V volume in m3, m mass in kg, R is constant equal to 0.287 kJ/kg K, and T temperature in K.
2 kg of air at 5 bar, 80°C expands adiabatically in a closed system until its volume is doubled and its temperature becomes equal to that of the surroundings which is at 1 bar, 5°C. For this process, determine : (i) The maximum work ; (ii) The change in availability ; (iii) The irreversibility. For air take : cv= 0.718 kJ/kg K, u = cvT, where cv is constant and pV = mRT, where p is in bar, V volume in m3, m mass in kg, R is constant equal to 0.287 kJ/kg K, and T temperature in K.
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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2 kg of air at 5 bar, 80°C expands adiabatically in a closed system until its volume is doubled and its
temperature becomes equal to that of the surroundings which is at 1 bar, 5°C. For this process, determine :
(i) The maximum work ;
(ii) The change in availability ;
(iii) The irreversibility.
For air take : cv= 0.718 kJ/kg K, u = cvT, where cv
is constant and pV = mRT, where p is in bar, V volume
in m3, m mass in kg, R is constant equal to 0.287 kJ/kg K, and T temperature in K.
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