Part 1: A piston-cylinder assembly has the piston fixed in place so it cannot move. The internal chamber is divided into two equal parts by a temporary partition. Initially there is 50 kg of water at 200 kPa and 25 C on one side of the partition. The other side is initially evacuated. Then the partition is quickly removed and the water expands to fill the entire chamber. The piston is still in a fixed position. The water is allowed to exchange heat with the surroundings until state 2 is reached when the temperature in the tank returns to the initial value of 25 C.

Determine:

a) The volume of the system; v=0.100m^3

b) The final pressure of the water; p= 3.169kPa

c) The final specific volume of the water; v=0.002 m^3/kg

d) The heat transfer for this process; Q=2.65kJ

e) How much energy must be transferred for this process from State 2 to State 3?

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