Pressurized water (pin = 10 bar, Tin = 110°C) enters the bottom of an L = 12-m-long vertical tube of diameter D = 110 mm at a mass fow rate of m = 1.5 kg/s. The tube is located inside a combustion chamber, resulting in heat transfer to the tube. Superheated steam exits the top of the tube at pout = 7 bar, Tout = 600°C. Determine the change in the rate at which the following quantities enter and exit the tube:

a. The combined thermal and fow work.
b. The mechanical energy
c. The total energy of the water.
d. determine the heat transfer rate, q.