Question

2 cubes of ice are pressed hard between the palms, when pressure is released, 2 cubes joined together. how?

Answer 1

When the two ice cubes are pressed together, melting point of ice is lowered, so they melt to form a thin layer of water (between them). On releasing the pressure, the water formed freezes because decrease in pressure raises the freezing point. Hence the two cubes stick together.

Answer 2

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1. When crushed ice is pressed, its melting point is lowered and some ice melts to form water.

2. When pressure is released, the melting point becomes normal and the water freezes to form ice forming a lump. Hence, the two ice cubes get joined together.

Hope it helps!

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