The rate of heat flow per unit length q/L through a hollow cylinder of inside radius ri and outside radius ro isq/L = ( A k ??T)/(ro ?? ri)where A = 2π (ro ?? ri)/ln(ro/ri). Determine the percent error in the rate of heat flow if the arithmetic mean area π (ro + ri) is used instead of the logarithmic mean area A for ratios of outside to inside diameters (Do/Di) of 1.5, 2.0, and 3.0. Plot the results.GIVENA hollow cylinderInside radius = riOutside radius = roHeat flow per unit length as given aboveASSUMPTIONSRadial conduction onlyConstant thermal conductivitySteady stateprevails

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