1.

Freezer is at -18 °C. Will will be Radiative heat transfer if meat is at 298k, its emissivity is 0.82 and average area is 0.045m².Either use Stefan Boltzmann law or take hᵣ (radiative heat transfer co-efficient) as 0.227.ε = ( Tₐᵥ/100 )³

A. 7.61
B. 6.94
C. 8.43
D. None of the mentioned
Answer» B. 6.94


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