# Review of Reaction Kinetics

### Review Test

What is rate?

What is meant by the total rate of a reaction?

Which of the following rate laws could describe a third order reaction?

What are the units for k in a zeroth order reaction?

If a reaction requires two moles of a single reagent to produce one mole of product, what is the ratio of the rate of product formation to the rate of reactant consumption?

What is initial rate?

For a reaction with four (4) reagents, how many experiments are necessary to determine the order of the reaction when using the method of initial rates?

When the concentration of a reagent, A, is tripled (holding the concentrations of all other species constant), the rate increases by a factor of 1.74. What is the order of the reaction in A

When the concentrations of both reactants A and B are doubled the rate increases by a factor of 8. The reaction is second order in B. Determine the order of the reaction in A.

What variable in the rate law can you not determine using the method of initial rates?

Under what circumstances should you not use the method of initial rates to determine the rate law for a reaction?

Which of the following is a technique used to stop a reaction for analysis?

By what factor would the rate increase when a second order reactant's concentration is tripled?

What is the advantage of using the method of integrated rates as opposed to the method of initial rates?

What plot generates a straight line for a zero order reaction?

What data is required to perform the method of integrated rates?

What plot creates a straight line for a second order reaction?

What is the slope of the line created by a plot of 1 / [A] versus time for a second order reaction?

How many experiments are necessary to perform the method of integrated rates for a third order reaction in A?

What plot gives a straight line for a first order reaction?

What is the slope of the line for a plot of ln [A] versus time for a first order reaction?

The concentration of A reduces from 1.0 M to 0.50 M in 25.2 minutes. If A decomposes by a first order reaction, what is the half-life of the decomposition of A?

If the half-life of a first order reaction is 10 s, how long does it take to decrease the initial concentration of a reactant by 94%?

Which order of reaction has a half-life that does not depend on the concentration of the reagents?

What is a half-life?

How many collisions can take place during an elementary step?

Why is a tetramolecular reaction unlikely?

What is an intermediate?

Which of the following is a property of a mechanism?

What is the limit on the number of elementary steps in a mechanism?

A mechanism...

What is the rate-determining step?

What is a reaction coordinate?

What is the highest point on a reaction coordinate diagram?

What is the vertical axis on the reaction coordinate diagram?

What determines the number of minima between reactants and products?

In a multi-step reaction, how can you tell from the reaction coordinate diagram what the rate determining step is?

What is the activation energy of a reaction whose rate doubles with a 15oC increase in temperature?

Which of the following is the Arrhenius equation?

What is the difference between rate and the rate constant?

What does the difference between the height of the products and that of the reactants on a reaction coordinate diagram represent?

Which species is placed on the left in a reaction coordinate diagram?

What is a substance that speeds up the rate of a reaction without being chemically altered called?

What type of catalyst is in the same phase as the reagents?

Which of the following is not true about the action of a catalyst?

How much of a catalyst is needed to catalyze a reaction?

What does a catalyst do to the free energy change of a reaction?

What is meant by the statement that one only needs a sub-stoichiometric amount of a catalyst to catalyze a reaction?

What happens to the rate of a reaction when more catalyst is added to a reaction that is zero order?

Which of the following would not increase the rate of a first order reaction?

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