Question

When ice starts melting from 0°C to 8.5°C, its density will:

• A. Remain constant
• B. First increase, then decrease
• C. First decrease, then increase
• D. Decrease only

Hint:

Water exhibits maximum density at 4◦C, a property crucial for the survival of aquatic life in colder regions.

Answer 1

The Correct Option is B

1. At 0°C, ice starts to melt, and the density of water increases as it transitions to the liquid phase.
2. Between 0°C and 4°C, the density of water continues to increase due to molecular arrangement becoming more compact.
3. Beyond 4°C, the density begins to decrease as the water expands with temperature.
4. Thus, between 0°C and 8.5°C, the density of water first increases and then decreases.