Kinetics AP Chemistry

Quiz
•
Science
•
12th Grade
•
Hard
Standards-aligned
Lisa Thompson
FREE Resource
25 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider the following rate law: Rate = k[A]n[B]m
How are the exponents n and m determined?
by using balanced chemical equation
By using the subscripts for the formulas
By educated guess
By experiment
Tags
NGSS.HS-PS1-5
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The rate law for a reaction is rate = k [A][B]2 Which one of the following statements is false?
If [B] is doubled, the reaction rate will increase by a factor of 4.
The reaction is second order in B.
The reaction is first order in A.
The reaction is second order overall.
Tags
NGSS.HS-PS1-5
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The graph shown depicts the relationship between concentration and time. What is the slope of this line?
-k
-1/k
k
ln[A]o
Tags
NGSS.HS-PS1-5
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Which of the two graphs show a state of equilibrium being reached?
A
B
A and B
Neither.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
During a science fair, Abigail, Evelyn, and Priya conducted an experiment to observe the rate at which a sugar cube dissolves in water at room temperature. What is the unit of the reaction rate they observed?
Molarity (M)
Molarity per second (M/s)
Kelvin (K)
Joules (J)
Answer explanation
The unit of reaction rate in a chemical reaction is Molarity per second (M/s), which represents the change in concentration of reactants or products per unit time.
Tags
NGSS.HS-PS1-5
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why does a higher surface area of a solid reactant increase the reaction rate?
It increases the density of the reactant
It decreases the path length for diffusion
It increases the number of available reactive sites
It increases the activation energy required for the reaction
Tags
NGSS.HS-PS1-3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In a chemical reaction, if the concentration of reactants is increased, what happens to the reaction rate?
It decreases
It increases
It remains unchanged
It initially increases, then decreases
Tags
NGSS.HS-PS1-5
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