Using a Volume-Weighted Mixture

The volume-weighted mixture function is for non-ideal gas multicomponent mixtures.

Using this function, a given mixture property ${\varphi }_{mix}$ is defined as:

where:

• $Y_i$ is the mass fraction of the $i$ th component in the mixture of $N$ components.
• ${\varphi }_i$ is the individual material property of the $i$ th component in the mixture of $N$ components.
• ${\rho }_i$ is the density of the $i$ th component.

For mixture density, this simplifies to: