Question

Compare expansion in solid, liquid and gas. ​

Answer 1

Answer:

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.

Answer 2

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.

When a solid is heated, its atoms vibrate faster about their fixed points. The relative increase in the size of solids when heated is therefore small. Metal railway tracks have small gaps so that when the sun heats them, the tracks expand into these gaps and don’t buckle.