Apiston-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.
2-3he 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-sdiagram.
(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, inkj.