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Q. |
Walls of a cubical oven are of thickness l, and they are made of material of thermal conductivity k. The temperature inside the oven is 100°C and the inside heat transfer coefficient is „3k/l’. If the wall temperature on the outside is held at 25°C, what is the inside wall temperature in degree centigrade? |
A. | 35.5 |
B. | 43.75 |
C. | 81.25 |
D. | 48.25 |
Answer» C. 81.25 |
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