One method of calculating this quantity decomposes it into combinatorial and residual terms.
One method of calculating this quantity decomposes it into combinatorial and residual terms. Another method assumes the environment around a molecule differs from the bulk environment in a way related to the difference between homo- and hetero-interaction energies. In addition to the UNIFAC and NRTL methods, another method contains a point 3 I term, while another was generalized to include Brownian motion by Onsager. In addition to the Davies equation, another method used to calculate it contains a second order viral coefficient beta sub MX and is named for Pitzer. The most popular method of calculating these quantities fails at a concentration above .1 molar, and was derived by considering the electroneutrality of a solution. For 10 points, name this proportional to the square root of the ionic strenght by the Debye- Huckel equation, which generalize concentration or partial pressure in non- ideal systems.
One method of calculating this quantity decomposes it into combinatorial and residual terms.
{Activity} coefficients