9th GRADE
Factors that
affect the rate of a
chemical reaction
Yousif Fahmi
TABLE OF CONTENTS
Introduction
Examples
1
3
2
4
Factors
Conclusion
1
Introduction
Introduction about this topic
Introduction
Chemical reactions are fundamental processes that
occur in nature and in the laboratory. The rate of a
chemical reaction is the speed at which it occurs,
and it is influenced by various factors.
Understanding the factors that affect the rate of a
chemical reaction is important for predicting and
controlling chemical reactions, as well as for
designing new chemical processes.
2
Factors
Factors that affect the rate of chemical
reaction
Factors
Surface area
Increasing the surface area of a solid
reactant leads to a faster reaction.
This is because a larger surface area
provides more opportunities for
reactant molecules to come into
contact with each other, leading to
more frequent collisions and a
faster reaction.
Concentration
Increasing the concentration of
reactants typically increases
the rate of the reaction.
This is because higher
concentrations increase the
frequency of collisions
between reactant molecules,
leading to more successful
collisions and a faster reaction.
Temperature
Increasing the temperature of a reaction
mixture leads to a faster reaction.
This is due to the fact that higher
temperatures increase the kinetic
energy of reactant molecules,
making them move faster and
collide more frequently, resulting
in an increased reaction rate.
3
Examples
Examples of factors that affect that rate of
the reaction
Factors
Surface area
powdered sugar
dissolves faster in
water than crystals of
sugar.
Concentration
Temperature
Zinc granules react fairly
slowly with dilute
hydrochloric acid, but
much faster if the acid
is concentrated.
Milk turns sour faster
on hot days than
on cold days.
4
Conclusion
Conclusion of this topic
Conclusion
1
Higher temperature the faster the
reaction will happen, lower
temperature the slower reaction
will happen.
2
Higher concentration of the
substance the faster the reaction
will happen, lower concentration of
the substance the slower reaction
will happen.
3
Larger surface area the faster the
reaction will happen, smaller
surface area the slower reaction
will happen.
Thank You