Chemical Equilibria and Reactivity

This lecture explores the concepts of chemical equilibria and reactivity, focusing on the second law of thermodynamics, Gibbs free energy, and the determination of spontaneity in reactions. It delves into the calculation of standard reaction enthalpy, free energy, and entropy, as well as the relationship between enthalpy, entropy, and temperature. The lecture also covers the concept of chemical equilibrium, reversible reactions, and the Debye-Hückel equation for calculating activity coefficients in solutions. Additionally, it discusses the impact of interactions on the activity of solutes in non-ideal solutions and the behavior of ions in electrolyte solutions.