WorksheetsCh 6 Kinetics
Total questions: 25
Worksheet time: 38mins
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.
Under the collision theory, the particles must collide with ____ and ____ for a reaction to occur.
a)
sufficient rate and sufficient energy
b)
sufficient surface area and correct orientation
c)
sufficient catalyst and sufficient energy
d)
sufficent energy and correct orientation
3.
More collisions correspond to a:
a)
Faster reaction rate
b)
Slower reaction rate
c)
Constant reaction rate
d)
None of the above
4.
Which of the following is NOT a factor affecting reaction rate?
a)
temperature
b)
catalysts
c)
particle size
d)
polarity
5.
Reaction rate means...
a)
amount of product formed
b)
speed of reaction
c)
concentration of reacting particles
d)
combining reactants with products
6.
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
7.
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
8.
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
9.
Which of the following increase the reaction rate?
a)
less surface area
b)
lower temperature
c)
an inhibitor
d)
increased concentration
10.
The addition of a catalyst to this reaction would cause a change in which of the indicated energy differences?
a)
I
b)
II
c)
III
d)
I and II
11.
Which factors increase the rate of a reaction?
a)
increasing temperature
b)
increasing concentration
c)
increasing surface area
d)
all of the above
12.
A catalyst works by
a)
changing the order of the reaction
b)
increasing the temperature
c)
lowering the activation energy
d)
making the activated complex
13.
If the temperature is reduced, a reaction rate will ______
a)
increase
b)
decrease
c)
stay the same
14.
The ____________ states that atoms, ions, or molecules must collide in order to react.
a)
transition state
b)
activation energy
c)
rate law
d)
collision theory
15.
Rate of chemical reaction means
a)
amount of product formed
b)
speed of reaction
c)
concentration of reacting particles
d)
combining reactants with products
16.
Grinding a seltzer tablet into powder increases the rate of reaction due to...
a)
increased concentration of reactants
b)
increased surface area
c)
increased speed of particles.
d)
better orientation of reactants
17.
A ______________ is a substance that increases the rate of a reaction without being used up during the reaction.
a)
catalyst
b)
product
c)
reactant
d)
solute
18.
True or False? The higher the concentration of a solution the less solutes it has in it.
a)
True
b)
False
19.
Smaller particle size allows for a _________ surface area to be exposed for the reaction.
a)
larger
b)
smaller
20.
Increasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles.
a)
false
b)
true
21.
_______ refers to how much solute is dissolved in
a solution.
a)
Surface Area
b)
Catalyst
c)
Temperature
d)
Concentration
22.
A temperature increase causes the particles
a)
to slow down
b)
move faster
c)
collide higher
d)
in the right order
23.
Which would dissolve faster?
a)
A
b)
B
c)
A and B
d)
None of the above
24.
What type of reaction is this?
a)
Endothermic
b)
Exothermic
25.
Which factors increase the rate of a reaction.
a)
increasing temperature
b)
increasing concentration
c)
increasing surface area
d)
All of these
100 %
