The fact that a heat pump requires energy to move heat from a colder object (the outside of a house)to a hotter object (the inside of the house)is a real life observation of which thermodynamic law?

Question

Quizplus · Accepted Answer

This is a real-life observation of the second law of thermodynamics, which states that in any energy transfer or transformation, the amount of useful energy will always decrease, meaning that some energy will be lost as heat. In a heat pump, energy is used to move heat from a colder object to a hotter object, which goes against the natural flow of heat from a hotter object to a colder object. This requires the input of energy, which is why the second law applies.

The Fact That a Heat Pump Requires Energy to Move