An adiabatic open feedwater heater in an electric power plant mixes 0.2 kg/s of steam at 100 kpa and 160°c with 8.5 kg/s of feedwater at 100 kpa and 50°c to produce feedwater at 100 kpa and 60°c at the outlet. determine the outlet mass flow rate and the outlet velocity when the outlet pipe diameter is 0.03 m. the specific volume at the exit is 0.001017 m3/kg.