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Consider a composite rectangular block made of a series of layers of three different materials i.e. A, B and C which are arranged serially in the order as A.B.C. The thermal conductivity of materials A, B, and C are 80, 200 and 50 W/m-C, respectively. The thickness of layers A, B, and C are 15, 10 and 20 cm, respectively. The outer surface temperature of wall A is 100C and that of wall C is 150C. If the volumetric rate of heat generation within the layer B is 300 kW/m, determine steady state temperature profile in the three layers and the maximum temperature in the assembly. Also, calculate the total heat conducted from the composite wall and what percentage of total heat conducted through the wall A