The virial theorem is a feature of systems with central forces.
where is the kinetic energy. The overlines represent time averages. The right hand side is known as the virial of Clausius (Ref. 2).
- Section 3.4 of Classical Mechanics by Herbert Goldstein 2nd Edition (1980) Addison Wesley
- R. Clausius, " " Philosophical Magazine 40 pp. 122- (1870)