A given mass of water is cooled from 10°C to 0°C. State the volume changes observed. Represent these changes on a temperature-volume graph.



On cooling water from 10°C, the density of water first increases up to 4°C and then decreases on cooling further below 4°C to 0°C.

Hence, the density of water is maximum at 4°C which is equal to 1 g cm-3 (or 1000 kg m-3 )

Temperature-Volume graph showing these changes is


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