3-41 A rigid tank is divided into two equal parts by a parti-

tion. One part of the tank contains 4 kg of compressed liquid/nwater at 200 kPa and 80°C and the other side is evacuated.

Now the partition is removed, and the water expands to fill

the entire tank. If the final pressure in the tank is 40 kPa,

determine the exergy destroyed during this process. Assume

the surroundings to be at 25°C and 100 kPa. Answer: 10.3 kJ