This topic contains a solution. Click here to go to the answer

Author Question: A certain Carnot heat pump transfers energy from the outside of a house, where the temperature is ... (Read 105 times)

soccerdreamer_17

  • Hero Member
  • *****
  • Posts: 552
A certain Carnot heat pump transfers energy from the outside of a house, where the temperature is -15C, to the inside of a room where the temperature is 21C.
 
  If this heat pump runs off of electricity, what is the minimum rate at which it uses electrical energy to deliver 150 W to the inside room?

Question 2

An air conditioner with a coefficient of performance of 3.5 uses 30 kW of power. How much power is it discharging to the outdoors?
 
  A) 30 kW
  B) 75 kW
  C) 105 kW
  D) 135 kW
  E) 210 kW



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

momo1250

  • Sr. Member
  • ****
  • Posts: 338
Answer to Question 1

18 W

Answer to Question 2

D




soccerdreamer_17

  • Member
  • Posts: 552
Reply 2 on: Jul 29, 2018
Gracias!


upturnedfurball

  • Member
  • Posts: 334
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

Did you know?

Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

Did you know?

It is believed that humans initially contracted crabs from gorillas about 3 million years ago from either sleeping in gorilla nests or eating the apes.

Did you know?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

For a complete list of videos, visit our video library