1.

Two large parallel plates having a gap of 10 mm in between them are maintained at temperatures T1, = 1000 K and T2 = 400 K. Given emissivity values, 1 = 0.5, 2 = 0.25 and Stefan-Boltzmann constant = 5.67 10-8 W/ m2K4, the heat transfer between the plates (in kW/m2) is ______

A. 11.049
B. 11.041
C. 11.042
D. 11.0
Answer» B. 11.041


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