Tom wrote:

If the door of a refrigerator is kept opened on
the hot day of summer, what about degree C
do you think room temperature falls?

(JGM) wrote in message

Hint: when the door is shut, where do you think
the heat that is removed from the inside of the
fridge goes?


Tom wrote

It goes to the cooler of a refrigerator, doesn't it?
That is, do you say the temperature of the room
does not change?

Right. Except the room would actually get hotter!

The first principal of refrigeration is that there is no such thing as
"cold". Cold is merely the absence of heat.

A refrigeration device (fridge, freezer, a/c, etc.) does not *make*
cold, it simply moves the heat from one place to another. In the case
of a refrigerator it moves the heat from inside the cabinet to the
outside of the cabinet where the room air takes it away (plus also
generates some heat in the process).

In your postulation - if you're taking heat out of the room air (by
leaving the fridge door open) and putting it back into the room air
(plus adding more heat from doing that work), how much colder is the
room air going to be?

JFYI

Dan O.
-
Appliance411.com
http://ng.Appliance411.com/?ref411=+refrigerators

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