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Why is common salt used to clear the snow off the road?

Why is common salt used to clear the snow off the road?

Grade:9

1 Answers

Sunil Kumar FP
askIITians Faculty 183 Points
8 years ago
common salt decreases the freezing point of water from 0 c to -ve
Salt lowers the freezing point

If there are things mixed in the water, they get in the way of crystal formation. Therefore, the water does not freeze at 0°C. That's what happens when salt is added to water.

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