Here's why:
* Molecules in motion: Gases are composed of molecules that are constantly moving and colliding with each other and the walls of their container.
* Volume and collisions: The volume of the container directly affects the frequency of these collisions. More volume means less frequent collisions.
* Number of moles and collisions: The number of moles of gas represents the number of molecules present. More molecules mean more collisions.
Therefore, if you increase the number of moles of gas while keeping the temperature and pressure constant, the volume of the gas will also increase proportionally.
This relationship is expressed mathematically as:
V₁/n₁ = V₂/n₂
where:
* V₁ is the initial volume
* n₁ is the initial number of moles
* V₂ is the final volume
* n₂ is the final number of moles
Important Note: Avogadro's Law only holds true when temperature and pressure are constant. If these factors change, the relationship between volume and moles will also change.
