The radiation heat flux from a heating element at a temperature of 800C, in a furnace maintained at 300C is 8 kW/m2. The flux, when the element temperature is increased to 1000C for the same furnace temperature is_____________________?
A. 12.0 kW/m2
B. 11.2 kW/m2
C. 14.6 kW/m2
D. 16.5 kW/m2
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