I. as shown in figure below is a proposed system that undergoes a cycle while operating between cold and hot reservoirs. the system receives 500 kj from the cold reservoir and discharges 400 kj to the hot reservoir while delivering net work to its surroundings in the amount of 100 kj. there are no other energy transfers between the system and its surroundings. evaluate the performance of the system using a. the clausius statement of the second law. b. the kelvin-planck statement of the second law.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater