by Chris Devers
Question by : Physics Help-heat and money problem?
In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 11.9 degrees C. The temperature at the inside surface of the wall is 21.7 degrees C. The wall is 0.109m thick and has an area of 9.29m^2. Assume one kilowatt*hour of electrical energy costs $ 0.20. How many hours are required for one dollar’s worth of energy to be conducted through the wall?
Answer by Hankm
post your work on the problem. at least find the insulation value or thermal conductivity of concrete.
(google it) then I’ll answer.
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