Question

When the water gets converted into ice, its volume

• A. decreases
• B. increases
• C. remains the same
• D. initially decreases then increases

Answer 1

The correct option is B

increases

• When water is converted into ice its density get decreases.
• Density of ice is less than the density of water.
• Density is inversely proportional to volume, so when density decreases volume will increase.

$\mathrm{density}=\frac{\mathrm{mass}}{\mathrm{volume}}$

• When water is cooled down it contracts until 4 ^oC but after that, it starts expanding because of which its density decreases.
• This phenomenon is known as anomalous behaviour of water.
• Hence B will be the correct option.