a fluid at 690 kpa has aspecific volume of 0.25m3/kg and entersna process with a velocity of 150m/s. heat losses in the process are 25kj/kg of fuid supplied. the fluid leaves the process at 135 kpa with aspecific  volume of 0.9m3/kg and velocity of 300 m/s. in the process ,work done by the fluid is equal to 900 kj/kg. calculate the change in internal energy of the fluid.