A piston cylinder has 2.5 kg ammonia at -20 C, 50 kPa. It is heated to – McqOptions

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1.	A piston cylinder has 2.5 kg ammonia at -20 C, 50 kPa. It is heated to 50 C at constant pressure from external hot gas at 200 C. Find the total entropy generation.
A.	0.511 kJ/K
B.	0.611 kJ/K
C.	0.711 kJ/K
D.	0.811 kJ/K
Answer» B. 0.611 kJ/K

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