Question

Don't spam here ✖️



Salt is spread on pavement snow during winter in cold countries. Give reason.

​

Answer 1

Answer:

The reason why salt is spread on pavement snow during winter in cold countries is because this practice lowers the freezing point of the water that forms the ice which makes the ice melt and prevents snow to collect on the pavements.

Answer 2

Question:-

• Salt is spread on pavement snow during winter in cold countries.

Reason:-

• When (salt) added to ice, salt first dissolves in the film of liquid water that is always present on the surface, thereby lowering its freezing point below the ices temperature. Ice in contact with salty water therefore melts, creating more liquid water, which dissolves more salt, thereby causing more ice to melt, and so on.

Additional information:-

Why does salt make ice colder?

• When water freezes from being in cold air, the release of heat actually slows down the freezing. When you add salt to a mixture of water and ice, it causes more ice to melt by depressing the freezing point and not by adding internal energy so it actually gets colder.

Hope it helps you ✔️