þ3) A piston-cylinder device contains air at a temperature of T = 300 K and P = 10o kPa. Now, the gas is heated in an irreversible process. At the end of the process after the system has reached to thermodynamic equilibrium, the temperature of the gas is measured as 600 K and the pressure has reduced to 80 kPa, Calculate the change in the entropy slkJ/kgK] of the gas during this process using the approximate method and the exact method given in equations a) and b) respectively. Also, sketch the process in a T-s diagram. Consider that this processes is IRREVERSIBLE. i) 5 - = Cpavg In Rla P "T - 5, - – 8 – R n

þ3) A piston-cylinder device contains air at a temperature of T = 300 K and P = 10o kPa. Now, the gas is heated in an irreversible process. At the end of the process after the system has reached to thermodynamic equilibrium, the temperature of the gas is measured as 600 K and the pressure has reduced to 80 kPa, Calculate the change in the entropy slkJ/kgK] of the gas during this process using the approximate method and the exact method given in equations a) and b) respectively. Also, sketch the process in a T-s diagram. Consider that this processes is IRREVERSIBLE. i) 5 - = Cpavg In Rla P "T - 5, - – 8 – R n

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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