How do modern fridges keep cool?

Modern refrigerators keep cool using a refrigeration cycle that involves a refrigerant. The cycle begins with the refrigerant absorbing heat from the fridge's interior, evaporating into a gas. This gas is then compressed, raising its temperature and pressure, before it passes through coils on the back or bottom of the fridge, where it releases the heat and cools down, turning back into a liquid. This process continuously repeats, maintaining a cool temperature inside the fridge.