Superheated water vapor at 180 psia and 500∘∘F is allowed to cool at constant volume until the temperature drops to 250∘∘F. At the final state, determine
a) the pressure,
b) the quality, and
c) the enthalpy. Also, show the process on a T−vT−v diagram with respect to the saturation lines.
a) 29.84 psia,
c) 426 Btu/lbm