An ice skating rink has tubes under its floor to freeze the

Last updated: 7/24/2022

An ice skating rink has tubes under its floor to freeze the water. Salt water is cooled well below the freezing point of water and pumped through the tubes to freeze the water in the rink. Why can the salt water be cooled so low without freezing? Salt has a very low freezing point. Adding salt to the water lowers its freezing point Movement of the water through the tubes keeps it in the liquid state. The salt water is constantly absorbing energy from its surroundings.