Question

With the help of examples, explain the expansion and contraction in gases.​

Answer 1

Answer:

Some materials expand on heating and some contract on cooling. Heating makes the particles (that form the material) expand or become loose. Gases expand the most while solids expand the least.

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Answer 2

Explanation:

When substances expand or contract, their particles stay the same size. It is the space between the particles that changes: the particles in a solid vibrate more when it is heated, and take up more room. the particles in a liquid move around each other more when it is heated, and take up more room.