A closed box is filled with dry ice at a temperature of -93.7 oC, while the outside temperature is 21.5 oC. The box is cubical, measuring 0.348 m on a side, and the thickness of the walls is 4.20 × 10-2 m. In one day, 3.33 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made.

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Asked Nov 5, 2019
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A closed box is filled with dry ice at a temperature of -93.7 oC, while the outside temperature is 21.5 oC. The box is cubical, measuring 0.348 m on a side, and the thickness of the walls is 4.20 × 10-2 m. In one day, 3.33 × 106 J of heat is conducted through the six walls. Find the thermal conductivity of the material from which the box is made.

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The rate of heat conduc...

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dQ ΔΤ - 6 kA Δη dt The total heat conducted in one day is given by,

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Thermodynamics

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