Can you correctly answer this question?
Imagine this, you put a working refrigerator with his door open and at ambient temperature, in a completely thermally insulated room also at ambient temperature, what means this room doesn’t allow heat transfer from the inside to the outside and vice-versa .
The question is the following, after 10h what will happen to the room’s temperature?
Will the room be colder? Hotter? Or at the same temperature?