Water at 180 degrees F is being heated up to its boiling point and evaporated at 1 atm. an electric heating coil is doing the heating. An amount of 100 gallons/min are fed to the operation. The system loses heat because it is poorly insulated. The heat loss is approximated as 20% of the heat required to heat and evaporate the liquid stream. Starting with the general energy balance and explaining what terms are zero or cancel, determine the power in kW needed.