13. 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 ; (i) The change in availability; (iii) The irreversibility. For air take : e, = 0.718 kJ/kg K, u = c,T, where e, is constant and pV = mRT, where p is in bar, V volume in m', m mass in kg, R is constant equal to 0.287 kJ/kg K, and T temperature in K. (Ans. (i) 122.72 kJ ; (i) 82.2 kJ ; (iii) 15.2 kJ]
13. 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 ; (i) The change in availability; (iii) The irreversibility. For air take : e, = 0.718 kJ/kg K, u = c,T, where e, is constant and pV = mRT, where p is in bar, V volume in m', m mass in kg, R is constant equal to 0.287 kJ/kg K, and T temperature in K. (Ans. (i) 122.72 kJ ; (i) 82.2 kJ ; (iii) 15.2 kJ]
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
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![13. 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;
(i) The change in availability;
(iii) The irreversibility.
For air take :c, = 0.718 kJ/kg K, u = c T, where c, is constant and pV = mRT, where p is in bar, v volume
in m', m mass in kg, R is constant equal to 0.287 kJ/kg K, and T temperature in K.
[Ans. (i) 122.72 kJ ; (ii) 82.2 kJ ; (iii) 15.2 kJ]](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F8cfb7c85-498e-4e9b-a2b3-2608744244eb%2Fd99602cc-7753-4479-a03e-8f62032065c9%2F65o0yn9_processed.jpeg&w=3840&q=75)
Transcribed Image Text:13. 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;
(i) The change in availability;
(iii) The irreversibility.
For air take :c, = 0.718 kJ/kg K, u = c T, where c, is constant and pV = mRT, where p is in bar, v volume
in m', m mass in kg, R is constant equal to 0.287 kJ/kg K, and T temperature in K.
[Ans. (i) 122.72 kJ ; (ii) 82.2 kJ ; (iii) 15.2 kJ]
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