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WorksheetsFactors affect rate of chemical reaction
Total questions: 10
Worksheet time: 9mins
Name
Class
Date
1.
The rate of a chemical reaction is NOT affected by which of the following:
a)
temperature
b)
concentration
c)
particle size (surface area)
d)
All of these affect reaction rates
2.
The rate of a reaction increases as temperature__________________.
a)
Decreases
b)
Increases
c)
Stays the Same
3.
Products will form faster if____________
a)
the particle size of the reactants are larger.
b)
temperature is decreased.
c)
concentration of the reactants are increased.
d)
the reaction is not stirred.
4.
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
5.
Catalysts permit reactions to proceed along a ___________energy path.
a)
lower
b)
higher
6.
Smaller particle size allows for a _________ surface area to be exposed for the reaction.
a)
larger
b)
smaller
7.
The ___________ the surface area of the reactants, the faster the reaction rate.
a)
larger
b)
smaller
8.
Increasing the temperature will increase the kinetic energy of particles, therefore increasing the collisions between particles.
a)
false
b)
true
9.
Usually lowering the temperature will slow down a reaction.
a)
false
b)
true
10.
Increasing the concentration of the reactants will slow down the reaction.
a)
false
b)
true
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