Font size
WorksheetsRate of Reaction
Total questions: 15
Worksheet time: 15mins
List four factors that affects the rate of a reaction
temperature
concentration
surface area
volume
catalysts
A temperature increase causes the particles ......
to slow down
move faster
collide higher
in the right order
How does a catalyst work in speeding up a reaction?
By lowering the activation energy or reaction
by giving them more energy
by making them more available
Why does a higher concentration increase the rate of reaction?
it increases the amount of reactants
it lowers the activation energy
it increases the energy of particle collisions
it increases the frequency of particle collisions
The minimum amount of energy needed for colliding particles to react is called
Chemical Energy
Kinetic Energy
Activation Energy
Potential Energy
Increasing pressure means that particles are ___________ together.
Happy
Never
Paired
Closer
Na2S2O3(aq) + 2HCl(aq) → 2S(s) + SO2(g) + 2NaCl(aq) + H2O(l)
In a second experiment, an extral 50 mL of water is added to the hydrochloric acid. As a result of this change, the
define rate of reaction?
The change in concentration of reactants or products per time unit.
The change in volume of products multiplied by the change in volume of reactants.
The change of products over the change of reactants.
How much the reactants react in a given time unit.
