Chapter 14 - Chemical Kinetics
Problems: 9-15 odd
Problems: 19-25 odd
Problems: 43-49 odd
Problems: 51-57 odd, 61, 63
Express the rate of a given reaction in terms of the variation in concentration of a
reactant or product with time.
Calculate the average rate over an interval of time, given the concentrations of a
reactant or product at the beginning and end of that interval.
Calculate instantaneous rates from a graph of reactant or product concentrations
as a function of time.
Explain the meaning of the term rate constant and state the units associated with
Determine the rate law from experimental results that show how concentration
Calculate the rate, rate constants, or reactant concentration given two of these
together with the rate law.
Use the equation ln[A]t - ln[A]0 = -kt and ln([A]t/[A]0) = -kt to determine (a) the
concentration of a reactant or product at any time after the reaction has started,
(b) the time required for a given fraction of the sample to react, or (c) the time
required for the concentration of a reactant to reach a certain level.
Explain the concept of reaction ½ life, and describe the relationship between rate
constant for a first order reaction.
Determine the rate law for a given higher-order reaction from the appropriate data.
Use the collision model of chemical reactions to explain how reactions occur at the
Explain the concept of activation energy and how it relates to the variation of
reaction rate with temperature.
Determine the activation energy for a reaction from a knowledge of how the rate constant varies with temperature.
Explain what is meant by the mechanism of a reaction using the terms elementary
steps, rate-determining step, and intermediate.
Derive the rate law for a reaction that has a rate-determining step, given the
elementary steps and their relative speeds; or, conversely, choose a plausible
mechanism for a reaction given the rate law.
Describe the effect of a catalyst on the energy requirements for a reaction.
Relate the factors that are important in determining the activity of a heterogeneous
Explain how enzymes act as biological catalysts using the lock-and-key model.