Q8: Consider a large plane wall of thickness L = 0.3 m, thermal conductivity k = 2.5 W/m - C, and surface area A= 12 m2. The left side of the wall at x =0 is subjected to a net heat flux of qo= 700 W/m2 while thetemperature at that surface is measured to be T1 = 80°C. Assuming constant thermal conductivity and noheat generation in the wall, (a) express the differential equation and the boundary conditions for steadyone-dimensional heat conduction through the wall, (b) obtain a relation for the variation of temperature inthe wall by solving the differential equation, and (c) evaluate the temperature of the right surface of thewall at x = L. Answer: (c) -4°C

Heat equation and boundary conditions:The heat conduction equation for the…

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