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1. |
If plate 1 is also a diffuse and Gray surface with an emissivity value of 0.8, the net radiatibn heat exchange (in kW/m2) between plate 1 and plate 2 is |
A. | 17.0 |
B. | 19.5 |
C. | 23.0 |
D. | 31.7 |
Answer» E. | |