Question

during volume expansion of solids ,only volume increase​

Answer 1

when the volume increases the density of the solid decreses

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Answer 2

Answer:

Explanation:

Liquids expand for the same reason, but because the bonds between separate molecules are usually less tight they expand more than solids. ... Heat causes the molecules to move faster, (heat energy is converted to kinetic energy ) which means that the volume of a gas increases more than the volume of a solid or liquid.

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