An electric heater is used to increase the temperature of liquid water in an open tank from 10.0 to 80.0°C in a steady state, steady flow process.
The mass flow rate of the water through the tank is 3.70 kg/s, and the electric heater adds 1500. kW to the water.
Determine the first and second law efficiencies of this system. The temperature of the local environment (ground state) is 10.0°C.