Chemistry, The Central Science, 11th edition Theodore L. Brown, H. Eugene LeMay, Jr., Bruce E. Bursten, and Catherine J. Murphy Dana & Michelle Chatellier University of Delaware © Copyright 2009, Pearson Education Chapter 14 Chemical Kinetics
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Chemistry, The Central Science, 11th edition
Theodore L. Brown, H. Eugene LeMay, Jr., Bruce E. Bursten,
and Catherine J. Murphy
Dana & Michelle ChatellierUniversity of Delaware© Copyright 2009, Pearson Education
Chapter 14Chemical Kinetics
The rate of a chemical reaction is affected by:
a. the concentration of the reactants.
b. the temperature of the reaction.
c. the presence of a catalyst.
d. all of the above.
The rate of a chemical reaction is affected by:
a. the concentration of the reactants.
b. the temperature of the reaction.
c. the presence of a catalyst.
d. all of the above.
As a chemical reaction proceeds, the rate of the reaction tends to:
a. increase.
b. decrease.
c. remain constant.
d. oscillate.
As a chemical reaction proceeds, the rate of the reaction tends to:
a. increase.
b. decrease.
c. remain constant.
d. oscillate.
If tripling the concentration of reactant A multiplies the initial rate of the reaction by nine, the reaction is _______ order in A.
a. zeroth
b. first
c. second
d. third
If tripling the concentration of reactant A multiplies the initial rate of the reaction by nine, the reaction is _______ order in A.
a. zeroth
b. first
c. second
d. third
A + B C + DRate = k[A][B]The overall order of this reaction is:
a. first.
b. second.
c. third.
d. fourth.
A + B C + DRate = k[A][B]The overall order of this reaction is:
a. first.
b. second.
c. third.
d. fourth.
W + X Y + ZRate = k[W]The order of this reaction with respect to X is:
a. zeroth.
b. first.
c. second.
d. third.
W + X Y + ZRate = k[W]The order of this reaction with respect to X is:
a. zeroth.
b. first.
c. second.
d. third.
The time needed for half of the reactant to be consumed is called the __________ of the reaction.
a. midpoint
b. equivalence point
c. half-rate
d. half-life
The time needed for half of the reactant to be consumed is called the __________ of the reaction.
a. midpoint
b. equivalence point
c. half-rate
d. half-life
The half-life of a first-order reaction is equal to _________,where k is the rate constant.
a. 0.693/k
b. 0.693k
c. k/2
d. 2k
The half-life of a first-order reaction is equal to _________,where k is the rate constant.
a. 0.693/k
b. 0.693k
c. k/2
d. 2k
The minimum energy a collision between molecules must have to produce the products is called the __________ energy.
a. initiation
b. internal
c. external
d. activation
The minimum energy a collision between molecules must have to produce the products is called the __________ energy.
a. initiation
b. internal
c. external
d. activation
The rate-determining step is the __________ step in a reaction mechanism.
a. first
b. last
c. fastest
d. slowest
The rate-determining step is the __________ step in a reaction mechanism.
a. first
b. last
c. fastest
d. slowest
A catalyst increases the rate of a reaction by:
a. causing the molecules to move more rapidly.
b. causing the molecules to collide more frequently.
c. lowering the energy of activation.
d. all of the above.
A catalyst increases the rate of a reaction by:
a. causing the molecules to move more rapidly.
b. causing the molecules to collide more frequently.
c. lowering the energy of activation.
d. all of the above.
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