Why do things expand on heating?
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Explanation:
All three states of matter (solid, liquid and gas) expand when heated. The atoms themselves do not expand, but the volume they take up does. ... 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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Q. Why do things expand on heating?
- If a substance is heated its atoms and molecules vibrate faster and their kinetic energy increases. As the atoms vibrates faster the space between the atom increases. Due to this the atoms and molecules take up more space and causes increase in size in solids.
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