In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 11.2°C. The te
Posted: Sun May 22, 2022 1:33 pm
In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 11.2°C. The temperature at the inside surface of the wall is 19.4°C. The wall is 0.20 m thick and has an area of 8.6 m2. Assume that one kilowatt hour of electrical energy costs $0.10. How many hours are required for one dollar's worth of energy to be conducted through the wall? Number Units hes e Textbook and Media Hint Assistance Used One kilowatt hour is equal to 3.6 x 10° J. The thermal conductivity of concrete is 1.1 W/(m.).