1 kg of saturated steam at 1000 kPa is in a piston-cylinder andthe massless cylinder is held in place by pins. The pins areremoved and the system suddenly and adiabatically expands to 5x itsoriginal volume before the piston hits a pair of upper pins. Theexpansion takes place against an atmosphere is 60 kPa. What is thefinal specific internal energy of the system? The answer will be inkJ/kg.
