1. what is? Effective collision? Collision theory? Factors affecting? Activation energy? Energy level diagram? Rate of reaction

2. AVERAGE RATE OF REACTION For the whole exp From X min to Y min On the X min (2 nd ) ( from 2 nd to 1 st ) For first x (3) min ( from 0 to 3rd )

4. = 46 = 0.20 cm 3 s -1 210

6. = 44-25 = 0.13 cm 3 s -1 180-60

8. = 44-38 = 0.10 cm 3 s -1 180-120

10. = 38-0 = 0.33 cm 3 s -1 120-0

11. INSTANTANEOUS RATE OF REACTION ( rate of reaction at that time) Draw tangent to the graph Y X Rate = Y/X

13. = 56 – 20 = 0.176 cm 3 s -1 222-18

18. Example: Sketch curve that would be obtained with the changes below: original Lower temp Volume of gas Time Lower temperature is used

19. Example: Sketch curve that would be obtained with the changes below: original higher temp Volume of gas Time Higher temperature

20. Example: Sketch curve that would be obtained with the changes below: original Bigger size Volume of gas Time Bigger size of reactant is used

21. Example: Sketch curve that would be obtained with the changes below: original Smaller size Volume of gas Time Smaller size of reactant

22. Example: Sketch curve that would be obtained with the changes below: original higher temp Volume of gas Time Higher temperature

23. Example: Sketch curve that would be obtained with the changes below: original With catalyst Volume of gas Time Catalyst was added

24. Changes to the FLAT part of graph

25. Example: Curve I represents the result of the experiment using excess zinc powder and 50cm 3 of 1.0 moldm -3 dilute hydrochloric acid I Volume of gas/ cm 3 Time/s

26. Draw curves when condition change: ORIGINAL: 50cm 3 of 1.0 moldm -3 dilute hydrochloric acid Change : 50cm 3 of 2.0 moldm -3 dilute hydrochloric acid ori Volume of gas/ cm 3 Time/s Change

27. Draw curves when condition change: ORIGINAL: 50cm 3 of 1.0 moldm -3 dilute hydrochloric acid Change : 50cm 3 of 0.5 moldm -3 dilute hydrochloric acid ori Volume of gas/ cm 3 Time/s Change

28. Draw curves when condition change: ori :50cm 3 of 1.0 moldm -3 dilute hydrochloric acid change : 50cm 3 of 0.5 moldm -3 dilute hydrochloric acid ori Volume of gas/ cm 3 Time/s change

29. Draw curves when condition change: ORI : 50cm 3 of 1.0 moldm -3 dilute hydrochloric acid change : 20cm 3 of 1.0 moldm -3 dilute hydrochloric acid ori Volume of gas/ cm 3 Time/s change

30. Draw curves when condition change: ori: 50cm 3 of 1.0 moldm -3 dilute hydrochloric acid change: 25cm 3 of 2.0 moldm -3 dilute hydrochloric acid ori Volume of gas/ cm 3 Time/s change

35. exothermic reaction

36. Activation energy with catalyst Activation energy no catalyst reactant

40. What is the catalyst used in the decomposition hydrogen peroxide?(1m) Manganese (IV) oxide

41. Write ionic equation for Sodium thiosulphate and sulphuric acid (2m)

42. End