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, water's density increases as ice melts into liquid.
2. From 0°C to 4°C, water density further increases due to compacting molecular structure.
3. Above 4°C, water density decreases due to thermal expansion.
4. In summary, water's density increases then decreases between 0°C and 8.5°C.