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12 November, 07:41

Why do solids expand on heating?

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  1. 12 November, 08:37
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    The molecules of solids are shrinked in there normal state. but as a heat energy is produced, the molecules starts curating fast and fast as temperature goes up. since they vibrate, they hit and collide each other breaking the bondings this increases the surface of area of the solid, and molecules consumes that space and they expand.
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