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प्रश्न
What do you understand by the anomalous expansion of water?
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उत्तर
Anomalous expansion: A liquid that does not behave like a normal liquid on heating or cooling is said to have anomalous expansion. On heating or cooling, water does not behave like a normal liquid. The volume of water increases if we heat or cool it, provided initially the water is at 4°C.
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संबंधित प्रश्न
Explain the following:
In cold regions in winter, the rocks crack due to anomalous expansion of water.
Density of water is maximum at :
A deep pond of water has its top layer frozen. What will be the likely temperature of water layer just in contact with ice?
The following diagrams illustrate three situations involving thermometers which are labeled A, Band C. In each situation the thermometers indicate different readings.
(i) What do you expect the approximate reading of the thermometer B and C would be? Give a reason for your answer.
(ii) How would the readings of A and B help you in calibrating a thermometer?
Write scientific reason.
Fish can survive even in frozen ponds in cold regions.
Write a short note.
Anomalous behaviour of water
Observe the given picture and answer the following questions.
- Which property do you understand in this picture?
- What is the temperature of the water at the surface?
- What is the temperature below the layer of ice on the surface?
A graph between the volume and temperature of water is shown. Explain the anomalous behaviour of water.
