physics

posted by .

Consider two identical rooms, one with a refrigerator in it and the other without one. If all the doors and windows are closed, will the room that contains the refrigerator be cooler or warmer than the other room? Why?

  • physics -

    Refrigerators transfer heat from the contents inside (food and drinks) to the air outside. In addition, the electrical energy needed to run the refrigerator's compressor winds up as heat in the room. So what do you think the answer is?

  • physics -

    The room that contains the refrigerator will be warmer than the other room

  • physics -

    That is correct!

    Did you ever notice that air conditioners must exhaust heated air on the outside of the buiding?

    If they didn't, they would end up heating the room. It would be like putting a refrigerator in the room.

    It is a consequence of the second law of thermodynamics.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Science Grade 3

    Heat is flowing from the living room to the bedroom. I need to draw a diagram that shows what you know about the temperature in each room...what should I do?
  2. Finite Math

    Please help...i'm totally lost with this one. Construct a linear program for the following situation. Do not solve. A hotel is refurbishing its rooms, each type of which will accommodate either one or two persons. A one-person room …
  3. physics

    two movers have to lift a refrigerator into a truck. one of the movers wants to life the refrigerator vertically, but the other mover wants to roll it up a ramp by applying a force parallel to the ramp. assume the height of the truck …
  4. General knowledge

    You are trapped in a room with two doors. One is to death and other lds to freedom. You don't know whic 1. There are two robots guarding the doors. They will let you choose one door but upon doing so you must go through it.You can, …
  5. physics

    A room is 3.4 smoots wide, 7.1 smoots long, and 1.5 smoots high. 28% of the room's walls are windows and doors. Determine the inside wall surface area of a 1/20 scale model of the room. (sq. in)
  6. math please help

    you are painting a room that is 16 ft long and 14 ft wide and 8ft high. the room has to identical windows and doors. 1 door leads to a closet that is 4 feet long and 4ft wide and 8ft high. you do not plan to paint the closet or windows. …
  7. Physics

    Help!!!! Please!!! The coefficient of performance of a refrigerator is defined as the ratio of heat extracted from the refrigeration compartment to the work required to operate the refrigerator. A certain refrigerator has a coefficient …
  8. math

    A hotel has rooms numbered 1 to 1000. One thousand visitors enter the hotel. 1. The first visitor switches on the light switches of every room. 2. The second visitor switches off the light switches of every other room, starting with …
  9. heat transfer

    can i ask u some question? about the heat transfer..1st question ,On a hot summer day, a student turns his fan on when he leaves his room in the morning. When he returns in the evening, will the room be warmer or cooler than the neighboring
  10. Cemistry

    Tom wanted to test his hypothesis that plants grow better at room temperature than in cold temperatures. He placed an ivy plant in the refrigerator, which had no light source.He also placed a spider plant in the window in his room. …

More Similar Questions