A piston-cylinder device contains 5 kg of steam at 100°C with a quality of 50 percent. This steam undergoes two processes as follows:
1-2 Heat is transferred to the steam in a reversible manner while the temperature is held constant until the steam exists as a saturated vapor.
2-3 The steam expands in an adiabatic, reversible process until the pressure is 15 kPa.
(a) Sketch these processes with respect to the saturation lines on a single T-s diagram.
(b) Determine the heat transferred to the steam in process 1-2, in kJ.
(c) Determine the work done by the steam in process 2-3, in kJ.
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