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The outer surface of a beaker containing ice cubes becomes wet in short while - Give scientific reason.

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Question  The outer surface of a beaker containing ice cubes becomes wet in short while. Answer  When ice cubes are placed in a beaker, ice starts melting.  The heat required for melting is absorbed from the surrounding air and also from the beaker to some extent.  Hence, the temperature of the air and beaker falls.  The capacity of air to hold water vapour depends upon the temperature of the air, and this capacity decreases as the temperature decreases.  At a certain low temperature, the surrounding air becomes saturated with water vapour present in it.  As the temperature falls further, the air is unable to hold all the water vapour.  Hence, the extra water vapour starts condensing on the cold outer surface of the beaker in the form of minute drops.  Therefore, The outer surface of the beaker containing ice cubes becomes wet in a short while.
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Anomalous behavior of water

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Anomalous behavior of water

1)When liquid is heated up to a certain temperature, it expands and when cooled it contracts.

2)Water however shows an exceptional behavior.

3)If we heat water from 0 degree Celsius to 4 degree Celsius it contracts instead of expanding. At 4 degree Celsius its volume is minimum.

4)If water is heated further, it expands and its volume increases. 

5)The behavior of water between its temperature from 0 degree Celsius to 4 degree Celsius is called anomalous behavior of water.

6)At 4 degree Celsius volume of water is minimum. Hence density of water is maximum at 4 degree Celsius.
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