Which of the following statements explains why people spread salt on icy sidewalks in the winter?
The salt causes the ice to undergo sublimation.
The salt lowers the surface tension of melted ice.
The ice-salt mixture has a higher density than ice has.
The ice-salt mixture melts at a lower temperature than ice does.
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Answer:
The last one is the answer.
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when certain salt is dissolved in plenty of water there is depression of the freezing point of water.
Option d
Explanation:
- Depression of freezing point of of water takes place when salt is dissolved in pure water. This has a large amount of application in real life
- the salt Is sprinkled on ice. This decreases the freezing point and as a result of this There is much more cooling of substances which is placed in contact of the useful stuff as a result of this the ice acts as a good refrigerant and helps in maintaining the temperature of certain solution.
To know more about depression of freezing point,
The depression in freezing point of water observed for the same ...
brainly.in/question/6202989
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