Question

(c) If crushed ice is pressed and then the pressure is released, a lump of Ice
is formed. Justify it.​

Answer 1

Answer:

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.

Explanation:

Answer 2

The he statement mentioned in the question is completely justified because -

• When we apply pressure on the ice the melting point of the ice becomes lower than the normal melting point.

• That's why on the pressure application the ice becomes liquid in no time.

• When we release the pressure, the melting points become normal again and the water freezes instantly.

• That's why the ice lump was formed, the crushed iced sticked with each other while re-freezing process and formed a lump.