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20. Heat and Temperature - Part 2 of 2
20. Heat and Temperature / Heat Transfer / Problem 4

A 1.20 cm chromium cube (emissivity = 0.28) is used for heating. It is enclosed in a container that is nearly a vacuum, whose walls have a temperature of 283.0 K. Determine the rate of power supply to the cube that will keep it at a temperature of 811 K. Assume conduction by supports is negligible.

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