Consider a geothermal supply of hot water available as saturated liquid at P₁ = 1.5 MPa. The liquid is to be flashed (throttled) to some lower pressure, P₂. The saturated liquid and saturated vapor at this pressure are separated, and the vapor is expanded through a reversible adiabatic turbine to the exhaust pressure, P₃ = 10 kPa. Study the turbine power output per unit initial mass, m1as a function of the pressure, P₂.