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PROBLEM 2
Water in the pictured piston cylinder assembly has an initial quality of 10%. Heat is added until
the temperature of the steam reaches 500°C. While heat is being added the piston rises 50 cm
and hits a set of stops. Find a) the initial pressure, b) mass of the system, c) temperature when
the piston hits the stops, d) final pressure of the steam, e) the net heat transfer, and f) net work
done.
50 cm
Po=101 kPa
157 kg
20 cm
↑
40 cm

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