Fluid enters a thin-waned tube of 5-mm diameter and 2-m length with a flow rate of 0.04 kg/s and a temperature of Tm,i = 85°C. The tube surface is maintained at a temperature of Ts = 25°C, and for this operating condition, the outlet temperature is Tm.o = 31.1oC. What is the outlet temperature if the flow rate is doubled? Fully developed turbulent flow may be assumed to exist in both cases, and the fluid properties may be assumed to be independent of temperature.