Question

Write a note on the anomalous behaviour of water.

Answer 1

Anomalous behaviour of water:

• Water exhibits a peculiar behaviour in the temperature range of $4{}^{\circ }\text{C}$ to $0{}^{\circ }\text{C}$.
• When cooled from $4{}^{\circ }\text{C}$ to $0{}^{\circ }\text{C}$, instead of contracting, water expands.
• The density of water decreases as the temperature decreases for this temperature range.
• This helps in the survival of fish in frozen water bodies.