CHEM 104 Lecture Notes - Lecture 32: Chemical Thermodynamics, Chemical Kinetics, Equilibrium Constant
Document Summary
Similar to equilibrium constant except that each concentration is divided by the standard-state concentration of 1 mol/l and each pressure is divided by the standard state pressure of 1 bar. Thermodynamics and kinetic stability: a substance is thermodynamically stable if it does not undergo product favored reactions, kinetically stable a reaction that proceeds so slowly that it can remain essentially unchanged for a long time. At equilibrium: q = k and g = 0. K = concentrations of solutions in mol/l and partial pressures of gases in bars (1 bar . Sometimes, ko or keg is used to emphasize that the equilibrium constant expression can have mixed phases. Reactant favored: go > 0 , k < 1. Product favored: go < 0 , k > 1. The equilibrium constant expression may be written as: * a temp change always causes a reaction to go faster *
