Refrigerant-134a enters a diffuser steadily as saturated vapor 500 kpa with a velocity of 170 m/s, and it leaves at 600 kpa and 50◦c. the refrigerant is gaining heat at a rate of 2.5 kj/s as it passes through the diffuser. if the exit area is 75 percent greater than the inlet area, determine (a) the exit velocity and (b) the mass flow rate of the refrigerant.
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