An engineer suggests that a space can be heated by using a heat pump to extract
ID: 869946 • Letter: A
Question
An engineer suggests that a space can be heated by using a heat pump to extract energy as heat from the ground and send energy as heat into the space. He claims that the energy supplied to the space can exceed the work required to run the heat pump. This:
A) is impossible by first law B) is impossible by second law C) would only work if the ground and the space were at the same temperature D) is impossible since heat flows from the (hot) space to the (cold) ground E) is possible
A) 576 MJ B) 700 MJ C) 237 MJ D) 769 MJ E) 880 MJ
please help !
Explanation / Answer
Answer E.