R-134 enters a non-adiabatic diffuser with a velocity of 200 m/s. The inlet temperature and pressure are 30'C and 400 kPa and the exit temperature and pressure are 120C and 700 kPa. If the exit velocity is 30 m/s, what is the heat transfer in kJ/kg of R-134? Answer: qin: 64. 28 KJ/k