Question

The cooling in refrigerator is due to

• A. Reaction of the refrigerator gas
• B. Expansion of ice
• C. The expansion of the gas in the refrigerator
• D. The work of the compressor

Answer 1

The correct option is C

The expansion of the gas in the refrigerator

When a gas expands, it reduces the temperature of the gas. So if some heat is coming into the refrigerator - from the fruits, veggies etc. you put into it, the coolant expands, takes heat from these substances to do so.