In the air, the amount of work done is equal to 4 If the lifting cable of a hoist lifts a 250-lb engine
times 250 lb, or 1,000 foot-pounds of work.
Select one:
O A.5
O B.2
O C.3
O D.4

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.