x8=3.5

x9=5.5

4. In a geothermal energy plant near a geothermal field, water is pumped at a condensed liquid state at X8[MPa]. As it passes through an isenthalpic valve, the pressure drops to 500kPa, and the resulting vapor expands until it reaches 20kPa and 5% humidity at the turbine's outlet. If the plant produces X9[MW] net power output, calculate the mass flow rate of the geothermal water. (25%)