Question

give reason substance expand on heating​

Answer 1

Answer:

When a substance is heated, its molecular movement increases. Due to this, the average distance between the molecules also increases, thereby increasing the volume of the substance, i.e., expanding the substance.

Explanation -:

All three states of matter (solid, liquid and gas) expand when heated. ... 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.

Answer 2

when a substance is heated, the molecular movement increases and also the distance between the atoms increases so the substance expands on heating

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