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