Q.

The face temperatures of a flat wall are 650?C and 450?C respectively and the thermal conductivity of wall material is 0.30 kcal/m-hr-?C. For a wall thickness of 20 cm, the rate of heat conduction per square meter of wall area will be

A. 37,500 kg
B. 300 kcal/hr
C. 600 kcal/hr
D. 3000 kcal/hr
E. 150 kcal/hr
Answer» B. 300 kcal/hr
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