Steam is maintained in a closed system at 80 bars and 440 C. a. Determine the availability, in KJ/Kg, if To is 25 C and Po is 1 bar. b. The steam is now cooled in a rigid tank until the pressure drops to 40 bars by transferring heat to the environment. Determine the percent loss in availability associated with the change in the state of the fluid, in KJ/Kg.