Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> How does the density of water change when : (i) it is heated from 0˚C to 4˚C, (ii) it is heated from 4˚C to 10˚C.

Answer 1

(i) water contracts on heating from 0°C to 4°C and expands on heating above 4°C.

(ii) The density of water is maximum at 4°C. It decreases when it is cooled from 4°C to 0°C or it is heated above 4°C.