This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: A certain Carnot heat pump transfers energy from the outside of a house, where the temperature is ... (Read 101 times)

soccerdreamer_17

  • Hero Member
  • *****
  • Posts: 552
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
Answer to Question 1

18 W

Answer to Question 2

D


soccerdreamer_17

  • Member
  • Posts: 552
Reply 2 on: Jul 29, 2018
:D TYSM

matt95

  • Member
  • Posts: 317
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

Allergies play a major part in the health of children. The most prevalent childhood allergies are milk, egg, soy, wheat, peanuts, tree nuts, and seafood.

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

Diagrams showing the multiple energy shells and orbitals of a nitrogen atom Diagrams showing the multiple energy shells and orbitals of a nitrogen atom
Spruce Tree House, Mesa Verde. Spruce Tree House, Mesa Verde.
Solar energy heats the atmosphere, creates seasons, and causes air to circulate Solar energy heats the atmosphere, creates seasons, and causes air to circulate
Variations in Ocean Water Temperature With Depth Variations in Ocean Water Temperature With Depth
chemistry homework help energy related chemistry homework help energy related
Energy flows from the environment into living organisms, then back to the environment Energy flows from the environment into living organisms, then back to the environment
Video: Digestive chemicals - types & enzymes

For a complete list of videos, visit our video library