One method for calculating this quantity splits it into a "combinatorial" term due to entropic and geometric considerations, and a "residual" term based on interactions between functional groups.
One method for calculating this quantity splits it into a "combinatorial" term due to entropic and geometric considerations, and a "residual" term based on interactions between functional groups. Another method for calculating this quantity is divided into "two-suffix" and "three- suffix" terms which model two-body and three-body interactions. UNIFAC is used to compute this quantity. The natural log of this quantity equals the derivative of the excess Gibbs free energy divided by RT with respect to mole fraction, a fact utilized to calculate it by the van Laar and Margules models. For an electrolyte, the natural log of this quantity scales with the product of the cation and anion charges times the square root of the ionic strength, according to the Debye-Huckel equation. For 10 points, name this quantity symbolized gamma, which represents deviations from ideality in a solution.
One method for calculating this quantity splits it into a "combinatorial" term due to entropic and geometric considerations, and a "residual" term based on interactions between functional groups.
activity coefficients [prompt on "activity"]