Determine the rate of heat transfer per meter length to a light oil flowing through a 2.5-cm-ID, 60-cm-long copper tube at a velocity of 0.03 m/s. The oil enters the tube at 16°C, and the tube is heated by steam condensing on its outer surface at atmospheric pressure with a heat transfer coefficient of 11.3 kW/m K. The properties of the oil at various temperatures are listed in the following table:

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p(kg/m³) c(kJ/kg K) k(W/m K) μ(kg/m s) Pr 15 912 Temperature, T(°C) 65 1204 30 912 1.80 1.84 0.133 0.133 0.089 0.0414 573 40 896 880 1.925 2.0 0.131 0.129 0.023 0.00786 338 122 100 864 2.135 0.128 0.0033 55