Why we use virial equation of state?
Since the perfect gas law is an imperfect description of a real gas, we can combine the perfect gas law and the compressibility factors of real gases to develop an equation to describe the isotherms of a real gas. This Equation is known as the Virial Equation of state, which expresses the deviation from ideality in terms of a power series in the density.
The actual behavior of fluids is often described with the virial equation:
PV = RT[1 + (B/V) + (C/(V^2)) + ...] ,
where,
B is the second virial coefficient,
C is called the third virial coefficient, etc.
in which the temperature-dependent constants for each gas are known as the virial coefficients. The second virial coefficient, B, has units of volume (L).
How to Calculate Compressibility Factor using Second Virial Coefficient?
Compressibility Factor using Second Virial Coefficient calculator uses Compressibility Factor = 1+((Second Virial Coefficient*Pressure)/([R]*Temperature)) to calculate the Compressibility Factor, The Compressibility Factor using Second Virial Coefficient formula is defined as the sum of unity and the ratio of the product of the second virial coefficient and pressure to the product of the universal gas constant and the temperature. Compressibility Factor is denoted by z symbol.
How to calculate Compressibility Factor using Second Virial Coefficient using this online calculator? To use this online calculator for Compressibility Factor using Second Virial Coefficient, enter Second Virial Coefficient (B), Pressure (p) & Temperature (T) and hit the calculate button. Here is how the Compressibility Factor using Second Virial Coefficient calculation can be explained with given input values -> 1.002874 = 1+((0.28*38.4)/([R]*450)).