Font size
WorksheetsRates of Reaction
Total questions: 7
Worksheet time: 4mins
For a reaction to occur particles must (a) with enough energy to break existing bonds
How do you increase the rate of reaction? (Select multiple)
increase the concentration of the reactant
decrease the temperature
increase the surface area of the reactants
decrease the surface area of the reactants
add a catalyst
What is the role of the catalyst?
To increase the rate of reaction
To decrease the rate of reaction
To replace the reactant
To make a new chemical reaction occur
As temperature increases the (a) energy of the particles increase, increasing the frequency of successful collisions
Label number 2
bond making
reactants
activation energy
overall energy released
How does a catalyst increase the rate of reaction?
It provides an alternative pathway for the reaction with a lower activation energy
It lowers the activation energy of the reaction
It gives the particles more kinetic energy causing them to collide with more frequency
It increases the activation energy of the reaction
Which concentration of acid had the fastest rate of reaction?
0.5 mol dm3
1.0 mol dm3
2.0 mol dm3
