Residual Helmholtz model generic interface.
Function that provides an initializer value for the liquid-root of newton solver of volume. In the case the model will use the volume_michelsen routine this value should provide the co-volume of the model.
volume_michelsen
Solver to solve a point during numerical contination.
Function that returns true if the method should stop
Excess Gibbs and derivs procedure
Combining rule for the attractive parameter.
Function that returns a setted model from the parameters vector
Subroutine to make variation in the method after a point converged
Interface subroutine for UNIFAC models temperature dependent functions