kinetics

Question 1

how does an increase in surface area affect rate of reaction

Answer 1

–> increase rate of reaction
- more particles will be exposed
- more particles able to collide with reactants
- greater frequency of successful collisions

Question 2

how does an increase in concentration affect rate of reaction

Answer 2

–> increase rate of reaction
- more particles within a fixed volume
- greater area
- more particles can collide with eachother
- greater frequency of successful collisions

Question 3

how does an increase in temperature affect rate of reaction

Answer 3

–> increase rate of reaction
- higher proportion of particles have energy more than/ equal to the activation energy
- more particles move faster (more ke)
- greater frequency of successful collisions

Question 4

how does a catalyst affect rate of reaction

Answer 4

–> increase rate of reaction without being used up
- lowers activation energy
- provides an alternative pathway

Question 5

name some types of catalysts

Answer 5

• chlorine free radicals
• platiumum
• zeolite

Question 6

definition of activation energy