ICSE BoardEnglish MediumSTD 8PHYSICSHeat Transfer2 Marks
Question
What do you mean by anomalous behaviour of water?
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Answer
Substances when heated expand. Their density $\left[\frac{m}{v}\right]$decrease. But in the case of water:
When water is heated from $0^\circ C$ to $4^\circ C$ it $\text{CONTRACT}$ and density $\text{INCREASE}$, heating water above $4^\circ C$ starts expanding and density of water decrease.
This means water has a maximum density at $4^\circ C$. This is called anomalous behaviour of water.
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