- #1
Security
- 57
- 0
On a hot day, it is 90 degrees in your friend Eustace's kitchen. Eustace decides to close all the doors and windows so no further heat transfer occurs between the outdoors and his apartment, and then he opens his refrigerator. Will the refrigerator cool down the kitchen? Why or why not? Describe the flow of hear in the room after the refrigerator door is opened. (My Teacher says not to consider the windows for this questions and the additional questions that follow.)
A.) After 5 minutes, would the air in the refrigerator be changing temperature less quickly, more quickly, or at the same rate as it did when the refrigerator's door was first opened? Why? (Btw, all my answers to these questions were wrong and long, so that's why I am not posting the them. My Answer: It would be changing more quickly because it would now be trying to draw the energy out of objects in the kitchen to make it cold.
B.) If the refrigerator is unplugged, what will eventually happen to the flow of heat in the room? My Answer: it would only come from the window, not from refrigerator coils. Rethought Question it might be: 'the hear would flow throught the room until it reaches a thermal equilibrium.'
A.) After 5 minutes, would the air in the refrigerator be changing temperature less quickly, more quickly, or at the same rate as it did when the refrigerator's door was first opened? Why? (Btw, all my answers to these questions were wrong and long, so that's why I am not posting the them. My Answer: It would be changing more quickly because it would now be trying to draw the energy out of objects in the kitchen to make it cold.
B.) If the refrigerator is unplugged, what will eventually happen to the flow of heat in the room? My Answer: it would only come from the window, not from refrigerator coils. Rethought Question it might be: 'the hear would flow throught the room until it reaches a thermal equilibrium.'