An insulated cylinder covered by a weighted frictionless piston of 500 kg and an area of 100 cm2 contains steam at 1 MPa and 300°C. The piston is held in position by a stop. The environment is steam...

An insulated cylinder covered by a weighted frictionless piston of 500 kg and an area of 100 cm2 contains steam at 1 MPa and 300°C. The piston is held in position by a stop. The environment is steam at 100 kPa and 30°C. The stop is removed and the piston rises to a new equilibrium position 50 cm higher (Figure P8.73).

a. Is this process reversible?

b. Find the work of the steam.

c. Find the change in energy of the steam.

d. Find the mass and the final volume of the steam.

e. Find the entropy change of the steam.