Changing the Rate of Reaction Reaction Rate
CFU
Decreased Rate
Increased Rate
factors that affect Reaction Rates
Concentration At higher concentrations, there are
more reactors in a pies volume. The reactants are
more likely to collie and react. The reaction rate is
Higher when reactant concentration is higher
Surface Area The reaction increases when more
reactant particles posed to one another. Crushing
or printing sosis the surface area and the
reaction rate
Turn to page 130-Look at
each illustration that depicts
the factors that affect rate of
reaction. Describe in your
own words how the drawings
show what has changed
about the factor and how it
affects the rate of reaction.
Temperature Reaction sally occur faster at
ipher temperatures Parties mover at higher
temperature. Because the reactant particu move
more they are money to cold and react.
Catalysts A catalysts that change the
of chemical reaction without being up or
charged very much Catalysts can increase reaction
rate by bring together casertype
of catalyst found in this