rates of reaction Flashcards
four factors affecting rate of reaction are
temperature, concentration, surface area, presence of a catalyst
for a reaction to happen,
particles must collide with enough energy to allow them to combine to form new products
increase in temp=
faster rate of reaction
if concentration increases there are
more particles present which means more collisions taking place
increase in concentration=
faster rate of reaction
decrease in temp=
slower rate of reaction
decrease in concentration=
slower rate of reaction
smaller the particle size=
faster rate of reaction
larger the particle size=
slower rate of reaction
catalysts …….. reactions
speed up
catalysts are used to
save energy and money as they allow reactions to take place at a lower temp.
rate of reaction equation:
rate= change in quanitity divided by change in time
