Question

9) Explain expansion in solids liquids and gases by giving
example each.​

Answer 1

Answer:

Matter has a total of three states. Namely, solid, liquid and gaseous.

Molecules of solids are bound together so that they cannot be separated. They are involved in a very tight way due to the fact that they have both a certain size and volume. Fluid molecules, on the other hand, have a small distance from each other due to the fact that they have no specific shape but volume. But the molecules of gaseous matter move a little more differently between the moon and the distance. That is why they have no size and volume.

Hope you understand.

Answer 2

When matter is heated, it expands in all three states: solid, liquid, and gas. The atoms themselves do not grow during this heating, but the volume they occupy expands.

Explanation:

• We'll talk about how the three subjects alter when they're heated up. When a solid is heated, its atoms vibrate faster about their fixed positions, according to the first law of thermodynamics. As a result, when solids are heated, the proportionate increase in size is negligible. Metal railway tracks, for example, include small gaps so that when heated by the sun, the tracks expand into the gaps and do not buckle.
• Similarly, liquids expand for the same reason, but they expand more than solids because the bonds between individual molecules are typically weaker. The liquid-in-glass thermometers work on this principle. When the temperature rises, the mercury expands, which causes it to rise up the glass.
• Finally, gas molecules are further apart and only faintly attracted to one another. Heat causes molecules to move more quickly. The volume of a gas increases greater than the volume of a solid or liquid when heat energy is transferred to kinetic energy.