Steam enters a nozzle at 400°c and 800 kpa with a velocity of 10 m/s, and leaves at 300°c and 200 kpa while losing heat at a rate of 25 kw. for an inlet area of 800 cm2, determine the velocity and the volume flow rate of the steam at the nozzle exit.

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.