Calculate the rate of heat transfer from the tube to water

Question

A 3 m long 25 mm dia tube is held at 100⁰C by steam jacketing. Water flows through the tube @ 180 kg/hr at 20⁰C. Calculate the rate of heat transfer from the tube to water. For water (60⁰C) : r_p = 4.178 kJ/kg K; k = 0.66 )W/mK); r = 983 kg/m³ and m = 0.47 ´ 10^–3 kg/ms.