A rigid tank having a volume of 0.1 m^3 initially contains water as a two-phase liquid-vapor mixture at 1 bar and a quality of 1%. The water is heated in two stages.
Stage 1: Constant volume heating until the pressure is 20 bar.
Stage 2: Continued heating while saturated water vapor is slowly withdrawn from the tank at a constant pressure at 20 bar. Heating ceases when all water remaining in the tank is saturated vapor at 20 bar.
For the water, evaluate the heat transfer, in kJ, for each stage of heating. Ignore Kinetic Energy and Potential Energy effects.