If the door of a running refrigerator in a closed room is kept open, what-will be the net effect on the room ?

Leaving a running refrigerator door open in a closed room will heat the room. According to the second law of thermodynamics, a refrigerator acts as a heat engine in reverse, requiring work (W) to transfer heat from a cold region to a hot region. The total heat exhausted to the room (QH) is the sum of the heat removed from the interior (QL) and the electrical work input (W), expressed as QH = QL + W. When the door is open, the refrigerator continuously attempts to cool the room, but it exhausts more heat into the room than it removes because of the additional energy from the electrical work. In a well-sealed room, this electrical energy manifests as an increase in the internal energy of the air, causing the temperature to rise gradually.