In Avogadro's Law, what is assumed about the gases compared?

Avogadro's Law states that equal volumes of gases, at the same temperature and pressure, contain the same number of molecules. This principle is fundamental in understanding the behavior of gases and their relationship to volume and moles.

The concept relies on the assumption that the gases being compared are measured under identical conditions of temperature and pressure to ensure that any differences in volume can be directly attributed to the number of particles present. When gases are at the same temperature and pressure, their kinetic molecular motion allows for a meaningful comparison of how many molecules fit into a given volume. Therefore, the accuracy of Avogadro's Law depends on maintaining these consistent conditions among the gases being analyzed.