Answered

In an electrically heated home, the temperature of the ground in contact with a concrete basement wall is 12.2 oC. The temperature at the inside surface of the wall is 18.2 oC. The wall is 0.15 m thick and has an area of 7.6 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

Answer :

1000 hours are required for one dollar's worth of energy to be conducted through the wall.

What is electricity?

  • A type of energy produced by charged particles (such electrons or protons), either statically as a buildup of charge or dynamically as a current.

What is heat?

  • Heat is the result of the movement of kinetic energy within a material or an item, or from an energy source to a material or an object.
  • Radiation, conduction, and convection are the three mechanisms through which such energy can be transferred.

Solution -

Assuming your heat loss is correct, and that costs you 0.10 cents.

That will cost you a dollar's worth of electricity in 100/0.10 = 1000 hours.

Therefore, 1000 hours are required for one dollar's worth of energy to be conducted through the wall.

Know more about kinetic energy here:

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