Question

The temperature of ice can be decreased below 0℃ by mixing _______ in it.

Answer 1

the temperature of ice can be decreased below zero degree celsius by mixing cold water in it

Answer 2

The temperature of ice can be decreased below 0℃ by mixing salt in it.

Explanation:

• As per the question, the temperature of ice can be decreased below zero degrees celsius by mixing salt in it.
• The salt helps in dissolving the liquid film of water present on the surface of the ice and therefore, the temperature reaches below the freezing point.
• This depression of freezing point of water using salt is known as the freezing point depression.
• This principle is quite helpful in making ice-creams without refrigerators by putting the mixture of ice-cream in a bowl of salted ice.

Learn more: temperature of ice

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