air at pressure of 101.3 kpa and 288.8 K enters inside a tube having an inside diameter of 12.7 mm and a length of 1.52 m with a velocity of 24.4 m/s. Condensing steam on the outside of the tube maintain the inside wall temperature at 372.1 K. Calculate the convection coefficient of the air.(Note: this solution is trial and error. First assume an outlet temperature of the air )