A mass of 0.02 kg of saturated water vapor is contained in the cylinder of Fig. 2.33. The spring with spring constant K = 60 kN/m just touches the top of the frictionless 160-kg piston. Heat is added until the spring compresses
a) 6 cm,
b) 10 cm,
c) 15 cm. Estimate the final temperature of the steam. (Don't forget the atmospheric pressure acting on the top of the piston.)
Figure 2.33

Piston 20 cm