Question

Two blocks of ice when pressed together joined to form a block because

• A. of heat produced during pressing.
• B. of cold produced during pressing.
• C. melting point of ice decreases with increase in pressure.
• D. melting point of ice increases with increase in pressure.

Answer 1

Answer: (C)

melting point of ice decreases with increase in pressure.

The melting point of ice is lowered on increasing the pressure.
When two blocks of ice are pressed against each other, the pressure applied on the blocks of ice increases and the melting point increases. Thus the two blocks of ice fuse together.