Partitioning Equilibrium

This lecture covers the concept of partitioning equilibrium, describing the distribution of compounds between different phases like liquid, gas, and solid. It explains the partitioning equilibrium in terms of concentration ratios, mole fractions, and partial pressure. Various sorption isotherms such as linear, Freundlich, and Langmuir are discussed, along with their applications in describing the equilibrium distribution of dissolved and adsorbed compounds. The lecture also includes exercises on sorption isotherms for specific compounds like benzene and trichloroethylene, as well as the derivation and application of Langmuir sorption isotherm. Additionally, the role of natural organic matter in sorption to particulates and its significance in environmental chemistry is explored.