WorksheetsKinetics Quiz
Total questions: 16
Worksheet time: 14mins
Name
Class
Date
1.
What two factors govern whether a collision between reacting particles will be effective?
a)
orientation and potential energy
b)
kinetic energy and temperature
c)
kinetic energy and orientation
d)
potential energy and kinetic energy
2.
More collisions correspond to a:
a)
Faster reaction rate
b)
Slower reaction rate
c)
Constant reaction rate
d)
None of the above
3.
Reaction rate means...
a)
amount of product formed
b)
speed of reaction
c)
concentration of reacting particles
d)
combining reactants with products
4.
Which of the following is NOT a factor affecting reaction rate?
a)
temperature
b)
catalysts
c)
particle size
d)
polarity
5.
Decreasing the particle size increases the reaction rate because
a)
It makes particles move faster
b)
It increases the likelihood of collisions with the correct geometry
c)
It decreases the surface area available to react
d)
It increases the number of collisions
6.
To slow down a chemical reaction you will do one of the following:
a)
Place the reactants in hot water
b)
Place the products in ice bath
c)
Place the reactants in a ice bath
d)
Keep stirring the reactants with a stirring rod
7.
Why does a higher temperature increase the rate of a reaction?
a)
it increases both the frequency and energy of particle collisions
b)
it only increases the frequency of particle collisions
c)
it only increases the energy of particle collisions
d)
it reduces the activation energy of the reaction
8.
Which of the following increase the reaction rate?
a)
less surface area
b)
lower temperature
c)
an inhibitor
d)
increased concentration
9.
What is activation energy?
a)
The maximum amount of energy used
b)
The minimum amount of energy required for a reaction to start
c)
The energy of the reactants
d)
The energy possessed by the products
10.
Limestone chunks are reaction with hydrochloric acid solution at constant temperature with average speed. If we crash the chunks of limestone into powder how would speed of reaction change?
a)
Reaction speeds up
b)
Reaction does not change
c)
Reaction slows down
d)
Reaction stops
11.
Which of the following best describes why increasing temperature increase reaction rate?
a)
Activation energy is reduced.
b)
Collisions become more frequent.
c)
Collisions become more energetic.
d)
Collisions become more frequent and more energetic.
12.
Which factors increase the rate of a reaction?
a)
increasing temperature
b)
increasing concentration
c)
increasing surface area
d)
all of the above
13.
What does a catalyst do?
a)
Speeds up reactants
b)
Speeds up a chemical reaction
c)
Speeds up products
d)
Speeds up particles
14.
What do you call a biological catalyst?
a)
Product
b)
Reactant
c)
Biological reaction
d)
Enzyme
15.
Which letter corresponds to the activation energy of the forward reaction?
a)
A
b)
B
c)
C
d)
D
16.
Catalysts permit reactions to happen with a __________ activiation energy.
a)
lower
b)
higher
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