rate of reaction 1.4

Question 1

what is rate of reaction

Answer 1

the speed at which reactants turn into products

Question 2

what can speed up reactions

Answer 2

• higher temperature
• higher concentration
• smaller particle size
• adding a catalyst

Question 3

describe how temperature speeds up rate of reaction

Answer 3

a higher temperature means the particles have more energy, moving faster leading to more successful collisions

Question 4

describe how a higher concentration speeds up rate of reaction

Answer 4

a higher concentration means there’s more reactant particles leading to more successful collisions

Question 5

describe how particle size speeds up rate of reaction

Answer 5

smaller particle size means there’s more surface area leading to more successful collisions

Question 6

describe how a catalyst speeds up rate of reaction

Answer 6

adding a catalyst allows the reaction to take place at a lower temperature and is not used up in the reaction or chemically changed

Question 7

calculate rate of reaction

Answer 7

(delta) quantity/ (delta) time

Question 8

what is used to measure rate of reaction

Answer 8

gas syringe