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The plane wall of an oven is of thickness L=0.05 m and is exposed to the surrounding at 300 K. The outter surface of the oven is exposed to the surrounding is at temperature 320 K in steady state. The energy radiated (in W/m 2 ) by the outter surface is proportional to the temperature difference between the surface and the surrounding, with proportionality constant 20 W/m 2 K . What is the temperature of the inner surface of the oven in steady state if the wall has a thermal conductivity of K = 0.5 W/mK. (a) 400K (b) 340 K (c) 380 K (d) 360 K


The plane wall of an oven is of thickness L=0.05 m and is exposed to the surrounding at 300 K. The outter surface of the oven is exposed to the surrounding is at temperature 320 K in steady state. The energy radiated (in W/m2) by the outter surface is proportional to the temperature difference between the surface and the surrounding, with proportionality constant 20 W/m2K . What is the temperature of the inner surface of the oven in steady state if the wall has a thermal conductivity of K = 0.5 W/mK.


(a) 400K              (b) 340 K            (c) 380 K           (d) 360 K    


Grade:upto college level

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