Avogadro’s Law

Avogadro's Law

The Italian scientist Avogadro (1776-1856) introduced a molecular concept to explain the reaction between gases. According to his theory, when the temperature and pressure are the same, the volume of all gases is proportional to the number of molecules.
That is, regardless of the type of gas, the same volume of gas at the same temperature and pressure contains the same number of molecules.