General Chemistry Review Sheet Chapters 18 and 19 Chapter 18-Know the two ways that reaction rates are calculated and be able to calculate reaction rate. -Know how surface area effects reaction rate. -Know how temperature affects reaction rate and know the “general rule”. -Know what activation energy is. -Know what a catalyst is. Chapter 19-Know what the following area) Chemical Equilibrium b) Reversible reaction c) Four Characteristics of a state of equilibrium d) Exothermic and Endothermic reactions e) Le Chatlelier’s Principle f) Equilibrium Constant -Know how to do all types of Equilibrium Constant calculations-Know how to find Keq but also know how to find concentrations if given Keq. Several questions on this ***** -Know how changing temp, pressure, concentration, and adding a catalyst affect equilibrium. Test on Wednesday.