Question

In countries where ice forms on the roads in winter, salt may be used to lower the freezing
point of the ice and make it melt . car is driven through streets treated with salt and then
parked in a warm garage.
How will you compare the rate of rusting compare with a car that has not been driven in the
streets treated with salt but left parked outside ? Explain your answer.
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Answer 1

Answer:

Salt works by lowering the freezing point of water. When sprinkled on ice, it makes a brine with the film of surface water, which lowers the freezing point and starts melting the ice that the brine is in contact with- to a point. The lower the temperature, the more salt you need, so it is less useful below -10C (15F)