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1. |
A burning wood in the fireplace has a surface temperature of 450 C. Assume the emissivity to be 1 and find the radiant emission of energy per unit area. |
A. | 15.5 kW/m<sup>2</sup> |
B. | 16.5 kW/m<sup>2</sup> |
C. | 17.5 kW/m<sup>2</sup> |
D. | 18.5 kW/m<sup>2</sup> |
Answer» B. 16.5 kW/m<sup>2</sup> | |