Pressurized water (p_in = 10 bar, T_in = 110°C) enters the bottom of an L = 10-m-long vertical tube of diameter D = 100 mm at a mass flow 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 p_out = 7 bar, T_out =
600°C. Determine the change in the rate at which the following quantities enter and exit the tube: 

(a) The combined thermal and flow work, 

(b) The mechanical energy, and 

(c) The total energy of the water. Also, 

(d) Determine the heat transfer rate, q.