Virial coefficient
= Virial coefficient
{wiki=Virial_coefficient}
The Virial coefficients are a set of coefficients in the virial equation of state, which describes the relationship between pressure, volume, and temperature for a real gas. The virial equation is often expressed as an expansion in terms of the density of the gas: \\\[ \\frac\{P\}\{kT\} = \\rho + B(T)\\rho^2 + C(T)\\rho^3 + \\ldots \\\] Here: - \\( P \\) is the pressure of the gas.