Question

When water is heated from $0^{\circ }C$ to ${10}^{\circ }C$, its volume:

• A. increases
• B. decreases
• C. does not changes
• D. first decreases and then increases

Answer 1

The correct option is D first decreases and then increases

Water exhibits an anomalous behaviour. It contracts on heating between $0^{o}C$ and $4^{o}C$ , so the volume of the water decreases. Above $4^{o}C$ volume increases upon heating. Thus, it has highest density at $4^{o}C$