Question

Why do some metals contracts on cooling??(Reason)

Answer 1

Hey there! here is ur Answer:-

Some metals contract on heating becoz KE particles of some metals contract on cooling and they get more and more closely packed and in the other hand of we heat the some metals they will expand. The only reason behind this is Kinetic energy of the atoms/molecules.

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Answer 2

Some metals contracts on cooling because each atom will take up more space due to it's movement so the material will expand. When it is cold the kinetic energy decreases, so the atoms take up less space and the material contracts.

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