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Heat exchange between two black surfaces enclosed by an insulated surface is given by . b) Q 12 = 2 A 1 σ b (T 14 – T24) . c) Q 12 = 3 A 1 σ b (T 14 – T24) . d) Q 12 = 4 A 1 σ b (T 14 – T24) .

Heat exchange between two black surfaces enclosed by an insulated surface is given by . b) Q 12 = 2 A 1 σ b (T 14 – T24) . c) Q 12 = 3 A 1 σ b (T 14 – T24) . d) Q 12 = 4 A 1 σ b (T 14 – T24) . Correct Answer Q 12 = A 1 σ b (T 14 – T24) .

This is the net heat exchange between two black surfaces enclosed by an insulated surface.

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