Two cubes of ice are pressed hard between the palms, when the pressure is released, the two cubes join together How?
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When two cubes of ice are pressed hard between the palms due to applied pressure the freezing point of ice decreases, some of the ice out of two cubes melts. latent heat of fusion needed for melting is taken from the surrounding and when pressure is released, energy equal to latent heat of fusion is given an the two cubes again freezes to join together.
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Pressure is directly proportional to temperature when we apply pressure, temp. increase then the ice in contact melt and it turns into water. When pressure is removed, the temperature decreases again and melted ice again freezes. Hence cubes join together.
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