A Cabin Has a 0

question 8

Multiple Choice

A cabin has a 0.159-m thick wooden floor [k = 0.141 W/(m · C°) ] with an area of 13.4 m². A roaring fire keeps the interior of the cabin at a comfortable 18.0 °C while the air temperature in the crawl space below the cabin is -16.4 °C. What is the rate of heat conduction through the wooden floor?

• A)19 J/s
• B)138 J/s
• C)264 J/s
• D)408 J/s
• E)459 J/s

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