One and one-half pounds of water within a piston–cylinder assembly execute a carnot power cycle. during isothermal expansion, the water is heated at 500 f from saturated liquid to saturated vapor. the vapor then expands adiabatically to a temperature of 100 f and a quality of 70.38%.

(a) sketch the cycle on p–v coordinates.
(b) evaluate the heat transfer and work for each process, in btu.
(c) evaluate the thermal efficiency.