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Kinetics Review
Test Description: A review of the Kinetics Unit of Chemistry
Instructions: Answer all questions to get your test result.
1) A reaction rate can be changed by:
A
Catalyst
B
All of the Above
C
Temperature
D
Concentration
2) The rate-determining step is the...
A
any step in a reaction.
B
fastest step in a reaction.
C
slowest step in a reaction.
D
rate at which a step is completed.
3) LeChatlier's Principle states that when a system at equilibrium is stressed...
A
the reaction shifts to relieve the stress and restore equilibrium.
B
the reaction breaks under the stress.
C
the reaction shifts to create more stress.
D
nothing happens.
4) Collision Theory states that reactions only occur when there is enough ...
A
reactants and products.
B
activation energy and the molecules are moving fast enough.
C
molecule orientation.
D
activation energy and the correct molecule orientation.
5) At equilibrium, the forward and reverse reactions are occurring at _________.
A
faster forward rates than reverse rates.
B
different rates.
C
the same rate.
D
two times the original rate.
6) LeChatlier's principle causes _______ to affect gases.
A
pressure
B
atmospheres
C
All of the above.
D
mm Hg
7) Endothermic and Exothermic Reactions both have....
A
energy as a reactant.
B
activation energy.
C
negative Gibb's Free Energy.
D
energy as a product.
8) A reaction with a negative Gibb's Free Energy will be...
A
None of the Above.
B
Spontaneous
C
Non-Spontaneous
D
Endothermic
9) A positive delta-H indicates a ______ reaction.
A
Endothermic
B
Slow
C
Fast
D
Exothermic
10) On this test I will get an _____
A
C
B
B
C
A
D
D
*select an answer for all questions
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