Virial (disambiguation): Difference between revisions

Revision as of 14:14, 7 February 2008

The virial of a central interaction potential $v(r)$ is defined by

V(r)={\frac {dv(r)}{dr}}r=-f(r)r.

Apart from historical reasons, the virial features prominently classical thermodynamics (for example, see virial coefficients) and in simulation (see: virial pressure).

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-The '''virial''' of a central [[ Intermolecular_pair_potential | interaction potential]] is defined by
+The '''virial''' of a central [[ Intermolecular_pair_potential | interaction potential]] <math>v(r)</math> is defined by
-:<math>V(r)= - \frac{dU}{dr} r = f(r) r .</math>
+:<math>V(r)= \frac{dv(r)}{dr} r = - f(r) r .</math>
 Apart from historical reasons, the virial features prominently [[classical thermodynamics]] (for example, see [[Virial_equation_of_state |  virial coefficients]]) and in simulation (see: [[virial pressure]]).