Solve the following problem by showing all work: (answers in parenthesis) Steam enters a diffuser at 20 paia and 240°F with a velocity of 900 ft/s and exits as saturated vapor at 240°F and 100 ft/s. The exit area of the diffuser is 1 ft2. Determine: a) the mass flow rate of the steam,(6.13 lbm/s) b) the rate of entropy generation for this process. Assume an ambient temperature of 77°F (0.0395 Btu/s-R).