In an electrically heated home, the temperature of the ground in contact with a concrete basement wal is 10.2 °C. The temperature at the inside surface of the wall is 18.1 °C. The wall is 0.14 m thick and has an area of 8.8 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?

In an electrically heated home, the temperature of the ground in contact with a concrete basement wal is 10.2 °C. The temperature at the inside surface of the wall is 18.1 °C. The wall is 0.14 m thick and has an area of 8.8 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?

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter21: Heat And The First Law Of Thermodynamics

Section: Chapter Questions

Problem 62PQ

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