Question

wt is anamolous expansion of water​

Answer 1

Answer:

The anomalous expansion of water is an abnormal property of water whereby it expands instead of contracting when the temperature goes from 4o C to 0o C, and it becomes less dense. The density is maximum at 4 degree centigrade and decreases below that temperature as shown in graph. The density becomes less and less as it freezes because molecules of water normally form open crystal structures when in solid form.

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Answer 2

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Water does not obey the Law of expansion and contraction between 0 to 4°C and shows anomalous or unusual behavior. The reason for this is that water is polar substance and due to greater polarity, all the water molecules are associated by hydrogen bonding.