Ideal Gas Law:A theoretical law stating that gas behavior can be predicted using pressure, volume, number of moles and temperature if we assume no intermolecular forces between gas molecules and perfectly elastic collisions among them.
Charles' Law: This law states that volume of a given mass of a gas is directly proportional to its absolute temperature provided its pressure remains constant.
Avogadro's Law:This law states that equal volumes of all gases at the same temperature and pressure contain an equal number of molecules.