A styrofoam box has a surface areaof 084 m2 and a


A Styrofoam box has a surface areaof 0.84 m2 and a wallthickness of 2.0 cm. The temperature of the inner surface is5.0°C, and the outside temperature is 27°C. If it takes 7.9 h for 5.0 kg of ice to melt in the container,determine the thermal conductivity of the Styrofoam.

W/mK

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Physics: A styrofoam box has a surface areaof 084 m2 and a
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