Refrigerators are usually kept at about rm 5^{circ}C, while room temperature is about rm 20^{circ}C.

Refrigerators are usually kept at about rm 5^{circ}C, while room temperature is about rm 20^{circ}C. If you were to take an “empty” sealed 2-liter soda bottle at room temperature and place it in the fridge, would you expect it to contract to one-fourth its original volume?