rates of reaction

Question 1

name 2 general ways you can use to measure the rate of a reaction:

Answer 1

• measure how quickly the products are made
• measure the rate at which reactants are used up

Question 2

what are 5 main factors that have to be considered when studying rates of chemical reactions?

Answer 2

• concentration (of solution)
• temperature
• surface area (for reactants in a solid state)
• catalyst
• pressure (for reactants in a gaseous state)

Question 3

what must happen to particles for a reaction to occur?

Answer 3

they must collide with each other

Question 4

what must collisions have in they are to lead a successful reaction?

Answer 4

sufficient energy - collisions must be equal to or greater than the activation energy

Question 5

what do more energetic collisions allow to happen between reactant particles?

Answer 5

bonds to be broken

Question 6

how are the rates of chemical reactions speeded up?

Answer 6

more frequent collisions with greater activation energy

Question 7

what is activation energy?

Answer 7

the minimum amount of energy required for a reaction to take place

Question 8

what happens to particles if they don’t get enough activation energy?

Answer 8

they still collide but just bounce off one another