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When 1 kg of water is cooled from 4°C to 0°C, its volume _______.
Question

When 1 kg of water is cooled from 4°C to 0°C, its volume _______.

A.

first decreases and then increases

B.

decreases

C.

increases

D.

remains the same

Correct option is C


Water expands abnormally between 4°C and 0°C. When liquid water is cooled, it contracts as expected until it reaches a temperature of about 4 degrees Celsius.
In normal cases, the volume of substances increases on heating and decreases while cooling. When 1 litre of water is cooled from 4°C to 0°C volume of water will start increasing this due to water's unique property known as 'Anomalous Expansion of Water'.

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