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How thick would a solid concrete wall have

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The thermal conductivity of concrete is 0.80 W/m- C*, and the thermal conductivity of a certain wood is 0.10 W/m- C*. How thick would a solid concrete wall have to be to have the same rate of heat flow as an 8.0-cm-thick solid wall of this wood? Both walls have the same surface area.

Reference no: EM13850231

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