Question

What purpose does the metal grill at the back of refrigerator serve

Answer 1

Explanation:

Cooling coils at the back of refridgerators are made of copper because copper is a very good conducter of heat and electricity. A gas called freon22 flows through the tubes. This cools the refridgerator. Metal grill is at the back of the fridge because it is involved in recirculation of refrigerant fluid.

Answer 2

Answer:

to flow the heat of the energy then the inside of the refrigerator becomes cool temperature

Explanation:

so that's why we use metal grill at the back of the refrigerator to serve