Take some ice in a glass or a plastic tumbler. Melt a small portion of ice by placing the tumbler in the sun. You have now a mixture of ice and water. Now place the tumbler in a freezing mixture (ice plus common salt). Does the water become solid once again?
Answers
Answered by
25
Answer:
No, water will not become solid once again.
Explanation:
When ice is put in tumbler in the sun, the ice melts from solid form to liquid form. This is a physical change wherein one form of matter changes to another. When the water and ice mixture in tumbler is placed in the freezing mixture which has common salt in it, the water does not become solid or turn to ice. This is because, salt lowers the freezing temperature of water and so water takes even more colder temperatures to become solid or ice again. Salt blocks the water from turning to ice.
Answered by
10
No, the water does not become solid again.
Explanation:
- The freezing mixture is a mixture of two or more substance that reduces the freezing temperature of the water.
- The water starts to freeze at 0°C under normal circumstance. Since, the freezing temperature is reduced, we need to freeze the water more.
- It is generally used in laboratory to maintain low temperature and industries also use freezing mixture technique.
- In the given example, the water needs to freeze for longer time than earlier.
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