Engineering thermodynamic Please need the solution for this 2 question. Thnkyou

QUESTION 6 (10 Marks) Steam enters a nozzle with a low velocity at 150C and 200 kPa, and leaves as a saturated vapour at 75 kPa. There is a heat transfer from the nozzle to the surroundings in the amount of 45 kJ for every kilogram of steam flowing through the nozzle. (a) What is the system? (1 Mark) (b) Determine the mass flowrate of the steam at the nozzle entrance if the nozzle exit area is 0.001 m2. (4 marks) (c) Determine the exit velocity of the steam (3 marks) (d) What were your assumptions to simplify your solution? (2 marks) QUESTION 7 (7 Marks) Air enters the duct of an air-conditioning system at 100 kPa and 10C at a volume flow rate of 20 m/min. The diameter of the duct is 25 cm, and heat is transferred to the air in the duct form the surrounding at a rate of 2.5 kJ/s. (a) What is the thermodynamic system? (1 Mark) (b) Determine the velocity of the air at the duct inlet (1 Mark) (C) The temperature of the air at the exit. (3 marks) (d) What assumptions did you make to simplify the solution? (2 marks)