Glycerin whose properties are Pr = 7610, p = 1260 kg/m3, p = 0.934 Ps.s and k = 0.292 W/m°C enters a tube, 5.0 mm in diameter and 0.435 m in length. The glycerin mean temperature at the tube inlet is 25°C and the tube wall temperature is maintained to be constant at 81°C. The mean flow velocity is 0.2 m/s. As a first approximation, the properties are assumed to be constant. Calculate the total heat transfer rate in [w] from the tube to the glycerin. (Note that the thermal entry length may be assumed because fluid has high Pr.) The tolerance of your answer is 5%.