Solids expand ________[more/less] than liquids.

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Solution

Solids expand less than that of liquids.
Molecules in liquids are less tightly packed than those in solids, that's why liquids expand more than solids.
Solids have a lower coefficient of cubic expansion than liquids hence expand lesser than liquids.
Coefficient of cubical expansion = increase in volume/original volume × rise in temperature.

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