In article , (Tom) wrote:
(JGM) wrote in message
...
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?

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

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

The temperature in the room will go UP.

A refrigerator is a box containing heat-transfer engine that moves heat from
inside the box to outside the box. That's all. It just moves heat from one
place to another. And it does so with less than perfect efficiency; that is,
some of the energy it uses is wasted, and dissipated as excess heat.