AP EAMCET · PHYSICS · Thermal Properties of Matter
A beaker is filled completely with water at \(4^{\circ} \mathrm{C}\). Identify the incorrect statement.
- A Water overflows when heated above \(4^{\circ} \mathrm{C}\).
- B Water overflows when cooled below \(4^{\circ} \mathrm{C}\).
- C Water overflows either when heated above \(4^{\circ} \mathrm{C}\) or cooled below \(4^{\circ} \mathrm{C}\).
- D Water will not overflow when cooled below \(4^{\circ} \mathrm{C}\).
Answer & Solution
Correct Answer
(C) Water overflows either when heated above \(4^{\circ} \mathrm{C}\) or cooled below \(4^{\circ} \mathrm{C}\).
Step-by-step Solution
Detailed explanation
The density of water is maximum at \(4^{\circ} \mathrm{C}\). As the temperature increases or decreases, the density of water decreases, which increases its volume. Hence, water overflows either when heated about \(4^{\circ} \mathrm{C}\) or cooled below \(4^{\circ} \mathrm{C}\).
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