Gases produced during the combustion of a fuel-air mixture, enter a nozzle at 200kpa, 150°c and 20m/s and leave the nozzle at 100kpa and 100°c. The exit area of the nozzle is 0.03m². Assume that these gases behave like an ideal gas with Cp = 1.15 kJ/kg. K and Y = 1:3, and that the flow of gases through nozzle is steady and adiabatic. Determine i. the exit velocity
ii. the mass flow rate.​

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.