Avogadro's Number

The first kinetic theory or gases states that under ideal conditions the volume is negligible; The particles are so small compared to the spaces between them that they essentially have no volume. According to Avogadro’s law, under the same temperature and pressure, any gases with the same volume also have the same amount of moles. Avogadro’s number is 6.02 X 10^23 and it represents the amount of particles in a mole. If every mole of any gas contains the same number of particles and the volume of all those particles is negligible then it can be said that no matter what the gas the same quantity of moles with occupy the same volume.