# ideal gas law

The Virial Correction to the Ideal Gas Law: A Primer » The virial expansion of a gas is a correction to the ideal gas law that is usually discussed in advanced courses in statistical mechanics. In this note we outline this derivation in a manner suitable for advanced undergraduate and introductory graduate classroom presentations. We introduce a physically meaningful interpretation of the virial expansion that has heretofore escaped attention, by showing that the virial series is actually an expansion in a parameter that is the ratio of the effective volume of a molecule to its mean volume. Using this interpretation we show why under normal conditions ordinary gases such as O_2 and N_2 can be regarded as ideal gases. Arxiv.org

Ideal gas law | Definition, Formula, & Facts » Ideal gas law, relation between the pressure P, volume V, and temperature T of a gas in the limit of low pressures and high temperatures, such that the molecules of the gas move almost independently of each other. In such a case, all gases obey an equation of state known as the ideal gas law: PV = Britannica.com

The Ideal Gas Law » The Ideal Gas Law is a combination of simpler gas laws such as Boyle's, Charles's, Avogadro's and Amonton's laws. The ideal gas law is the equation of state of a hypothetical ideal gas. It is a good … Chem.libretexts.org