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& What is meant by expansion effect of heating?​

User Nukl
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Expansion. When heat is added to a solid, the particles gain energy and vibrate more vigorously about their fixed positions, forcing each other further apart. As a result expansion takes place. Similarly, the particles in a liquid or gas gain energy and are forced further apart.l
User Luming
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Answer:

it's when heat demolished the object

User Getter Jetter
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