2006-09-24 22:09:40 · 6 answers · asked by genre_airene_08 1 in Social Science ➔ Other - Social Science
Salt water freezes at a lower temperature than normal H2O, so the water doesn't have to expend any energy changing states, and as a result it can get colder.
2006-09-24 22:12:33 · answer #1 · answered by Curiouso567 2 · 0⤊ 0⤋
Adding salt to water depresses its freezing point, which means that ice remains ice for much longer, instead of melting into water. That's why an icebath remains colder longer if salt is added.
By the way, salt also elevates the boiling point of water which means that if you add salt to water and then boil it, it remains water for a longer time before it turns to steam or vapour. This fact is used when you want to boil vegetables like potatoes. Salty water ensures that potatoes boil for a longer time in water, and hence they get cooked thoroughly.
2006-09-24 22:23:55 · answer #2 · answered by al 2 · 0⤊ 0⤋
Salt lowers the freezing point of the water so the water can remain colder without freezing.
2006-09-24 22:13:27 · answer #3 · answered by ssbn598 5 · 1⤊ 0⤋
because it melts the ice and the coldness of the ice spreads through the bath.
2006-09-24 22:12:00 · answer #4 · answered by Anonymous · 0⤊ 0⤋
because salts take the even the little heat that is preasent to dissolve itself..
2006-09-24 22:18:09 · answer #5 · answered by Anonymous · 0⤊ 0⤋
basic physics 101 chemical compound reaction
2006-09-24 22:15:04 · answer #6 · answered by yahbonez 2 · 0⤊ 0⤋