A circular tube with an outer diameter of $5$cm and an inner diameter of $4$cm is used to transport hot fluid. The inner surface of the tube's wall is $100$DegC, while the outer surface is $40$DegC. What is the rate of heat transport across the tube wall per meter length of the tube at steady state if the thermal conductivity of the tube wall is $15$ W$/($m$-$K$)?$

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To calculate the rate of heat transport across the tube wall per meter length of the tube at steady ... View the full answer