Question

which of the following contracts on heating lukewarm water,ice,mercury ,iron?

Answer 1

Answer:

ice contracts on heating

Answer 2

Ice contracts on heating.

• There's a common tendency of different substances, that an expansion is observed during the heating of those objects.
• But, there are some exceptions also.
• Ice reduces in volume or contracts, when it gets heated.
• This happens because, in the ice crystal formation there are hydrogen bonds which are arranged in hexagonal shape. This takes more space. But, when we melt the ice these hexagonal structures are broken and the water molecules come close to each other again. That's why, ice contracts on heating.
• The rest of the substances expands during the heating process.