2022 · Q86
When water is heated from 0°C to 4°C, its density
General KnowledgePhysics
- Aremains constant.
- Bincreases.
- Cdecreases.
- Dfirst increases then decreases to its original value.
Explanation
Water shows anomalous expansion: on heating from 0 degC to 4 degC it contracts, so its density increases, reaching a maximum at 4 degC. It does not remain constant or decrease in this range. Hence its density increases.