Chapter 15 - Learning Goals
Write the equilibrium expression for a balanced chemical equation, whether heterogeneous
Numerically evaluate Kc or Kp from a knowledge of the equilibrium concentrations or
pressures of reactants and products or from the initial concentrations and the equilibrium
concentration of at least one substance.
Interconvert Kp and Kc.
Calculate the reaction quotient Q, and by comparison with the value of K determine whether
a reaction is at equilibrium. If it is not at equilibrium you should be able to predict in what
direction it will shift to reach equilibrium.
Use the equilibrium constant to calculate equilibrium concentrations.
Explain how the relative equilibrium quantities of reactants and products are shifted by
changes in temperature, pressure, or the concentrations of substances in the equilibrium
Explain how the change in equilibrium constant with change in temperature is related to the
enthalpy change in the reaction.
Describe the effect of a catalyst on a system as it approaches equilibrium.