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Q. |
The surface temperatures of a flat wall are 650?C and 450?C respectively and the thermal conductivity of the wall material is 0.30 kcal/m-hr-?C. The heat flux for a wall of 20 cm thickness will be |
A. | 60 kcal/m2-hr |
B. | 600 kcal/m2-hr |
C. | 120 kcal/m2-hr |
D. | 300 kcal/m2-hr |
E. | 450 kcal/m2-hr |
Answer» D. 300 kcal/m2-hr |
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