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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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What is Latent heat of fusion and specific latent heat of fusion.

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Latent heat of fusion

1)The heat energy absorbed at constant temperature during transformation of solid into liquid is called latent heat of fusion.

2)During transition of solids phase to liquid phase, the object absorbs heat energy, but its  temperature does not increase.

3)The heat energy absorbed is utilized for weakening the bonds between the atoms or molecules in the solid and transform it into liquid phase.

Specific latent heat of fusion.

The amount of het energy absorbed at constant temperature by unit mass of solid to convert into liquid phase is called the specific latent heat of fusion.
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