Chem 102 - General Chemistry II » Summer 2021 » Quiz 1

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Question #1
What is chemical kinetics?
A.   The study of what molecular events occur during the overall reaction and the study of reaction rates
B.   The study of reaction rates
C.   The study of reaction rates, the study of how reaction rates change under varying conditions, and the study of what molecular events occur during the overall reaction
D.   The study of what molecular events occur during the overall reaction
E.   The study of how reaction rates change under varying conditions
Question #2
Which below is not a factor that can affect the rate of any given reaction?
A.   Boiling Point
B.   Temperature
C.   Surface area of a solid reactant or catalyst
D.   Concentration of reactants
E.   Concentration of catalyst
Question #3
The reaction rate is the decrease in molar concentration of reactant of a reaction per unit time with units of mol/(L·s).
A.   TRUE
B.   FALSE
Question #4
Calculate the average rate of decomposition of KClO3 by the reaction 2KClO3(s) --> 2KCl(s) + 3O2(g) at the following time interval. At time 543 s, the concentration of KClO3 is 2.93 M. At time 659 s, the concentration of 2KClO3 is 1.391 M. 
A.   0.011 M/s
B.   0.013 M/s
C.   0.012 M/s
D.   0.023 M/s
Question #5
Consider the reaction:  2NO(g) + H2(g) --> N2O(g) + H2O(g). In a series of experiments, the following rate law was obtained: Rate = k [NO]2 [H2]   What is the reaction order with respect to H2 ?
A.   3
B.   1
C.   4
D.   2
Question #6
Consider the reaction:  I–(aq) + ClO–(aq) + OH–(aq) --> IO–(aq) + Cl–(aq). In a series of experiments, the following rate law was obtained: Rate = k [I–] [ClO–]2.  What is the overall reaction order? 
A.   3
B.   2
C.   6
D.   1

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