Question

What happens to the room temperature in ehich an air conditioner is lefy running on a table in the midle of the room

Answer 1

It will get cold only in that room. if you also have it in a room and close the door it will also get colder. sorry if this didnt help.

Answer 2

An air conditioner takes heat out of the air that runs through it. It has to put that heat somewhere. If it can't blow the heat out of the room then the heat stays in the room. But that's not all. While it's running the air conditioner also uses electrical energy to run. And that generates more heat. So if there's an air conditioner running in a closed room then the room will get warmer.