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Topic 15 Learning Objectives

Be able to:

Define, compare and contrast, classify, differentiate, put in order, predict using, identify correct and incorrect examples of, identify correct and incorrect interpretations of, identify correct and incorrect applications of…the following terms:

        reversible reaction
     forward reaction
     reverse reaction
     chemical equilibrium
     dynamic equilibrium
     equilibrium position
     I.C.E. (Initial-Change-Equilibrium) table
     equilibrium constant (Kc)
     homogeneous equilibrium
     heterogeneous equilibrium
     reaction quotient (Qc)
     LeChatelier’s Principle

 Use the equilibrium position of a reaction to determine whether products or reactants are favored in a reversible reaction

Apply stoichiometry to equilibrium mixtures

Set up an I.C.E. (Initial-Change-Equilibrium) table

Use the magnitude of the equilibrium constant to determine whether the equilibrium lies to the right or left, and whether products or reactants are favored

Write equilibrium constant expressions for homogeneous equilibria, in terms of partial pressures where all species are gaseous, and for heterogeneous equilibria

Calculate equilibrium constants from equilibrium concentrations

Calculate equilibrium constants from stoichiometry

Predict the direction of a reaction from the reaction quotient

Calculate one equilibrium concentration given the others and the equilibrium constant

Calculate equilibrium concentrations from initial concentrations and the equilibrium constant

Apply LeChatelier’s Principle to changes in concentration, changes in temperature, and changes in pressure

Explain how catalysts work and their effect on activation energy, rate of reaction, the composition of a reaction mixture, the value of the equilibrium constant, and the rate at which equilibrium is reached