1.8 Avogadro's Hypothesis Video Lectures
1.8 Avogadro's Hypothesis
Avogadro's hypothesis or suggestion is that matter consists of two kinds of ultimate particles. These are atoms and molecules.
Atoms are the smallest particle of an element which may or may not have independent existence, but it takes part in chemical reactions.
Molecule is the smallest particle of a substance (element or compound) capable of independent existence.
The actual hypothesis is that under similar conditions of temperature and pressure, equal volumes of all gases contain equal number of molecules.