Acc. to the 2nd law of thermodynamics we have to do work in transferring energy (HEAT) from a cold body to hot body, in case of refrigerator the work is done by electricity

IFF the frige is ON than it will extract heat from the air (inside it) and do some work and release the heat from the back(you can check yourself frige is hot at the backside)

iff the doors are opend, effectively Electrical energy is converted into heat energy

 

M I rite  ?

I hope it is not the last post