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.

what are the statements? x

when jerome paddle in flowing river towards east the net speed of jerome will increase

so the net speed of jerome will be given as

now the speed of paul will be same as it is given as he is running on the ground

so

so here we can say since the speed of jerome is more so he will win the race

now as we know the distance so the time difference is given as

so jerome will reach first and the time difference will be 203.55 s or 3.4 min

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explanation: