What is anamalous behaviour of water??
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The expansion of water when it is cooled from four 40C to 00C is known as "anomalous expansion of water."
Reason for the expansion is due to the formation of larger clusters in the water molecules. When the temperature of water molecules go from 40C to 00C they are forming groups in small lattices this increases the volume and decreases density.
As a result of this water at 4°C is denser than that at 0°C.This causes floating of ice on water. Bursting of pipes is also due to anomalous expansion.
This is very interesting that this unusual behavior of water, this anomaly is the reason for existence of aquatic life. Life is possible there because of this anomaly.
Reason for the expansion is due to the formation of larger clusters in the water molecules. When the temperature of water molecules go from 40C to 00C they are forming groups in small lattices this increases the volume and decreases density.
As a result of this water at 4°C is denser than that at 0°C.This causes floating of ice on water. Bursting of pipes is also due to anomalous expansion.
This is very interesting that this unusual behavior of water, this anomaly is the reason for existence of aquatic life. Life is possible there because of this anomaly.
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Answer:The answer is in the explanation below
Explanation:
(1)When water starts cooling, its density increases like that of most liquids. This happens at normal temperature.
(2) But when its temperature falls below 4 ° C its density starts decreasing. Therefore the density of water is maximum at 4 C.
(3) When the temperature of water is lowered below 4 C, its density decreases but its volume increases.
(4) This is called anomalous behaviour of water.
(5) Water expands when the temperature falls below 4 C.
(6) For all other substances when the temperature is lowered, its density increases as the volume decreases; but water does not show this. This is the peculiarity of water.
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