An open feedwater heater is a direct-contact heat exchanger used in vapor power plants. Shown in the figure below are operating data for an open heater with H2O as the

working fluid operating at steady state. Ignoring stray heat transfer from the outside of the heat exchanger to its surroundings and kinetic and potential energy effects, determine the rate of entropy production,in kW/K. (Hint: Use the first law to find the mass flow rates)Also determine state point 1 and 2 on a T-s diagram, then mix them and show the outcome is 3. Show 3on the T-s diagram.