1. KINETICS : POTENTIAL ENERGY OF REACTION GRAPH
SLIDE#1 3/29/10 CH 17-18
100 kJ
THIS LINE REPRESENTS THE POTENTIAL ENERGY CONTENT OF THE ACTIVATED COMPLEX DURING THE REACTION.
90 kJ
80 kJ
THE ACTIVATED COMPLEX IS AN UNSTABLE, HIGHLY ENERGISED TRANSIENT STATE, BOTH THE FORWARD AND REVERSE REACTIONS MUST TRANSITION THROUGH THIS STATE.
70 kJ
60 kJ
50 kJ
40 kJ
30 kJ
20 kJ
THIS LINE REPRESENTS THE POTENTIAL ENERGY CONTENT OF THE PRODUCTS AFTER THE REACTION.
THIS LINE REPRESENTS THE POTENTIAL ENERGY CONTENT OF THE REACTANTS BEFORE THE REACTION.
10 kJ

2. KINETICS : POTENTIAL ENERGY OF REACTION GRAP
SLIDE#2 3/2/07
100 kJ
90 kJ
80 kJ
ACTIVATION
ENERGY
REVERSE ACTIVATION
ACTIVATED COMPLEX P.E.
70 kJ
60 kJ
REACTANTS P.E.
50 kJ
40 kJ
30 kJ
PRODUCTS P.E.
20 kJ
10 kJ

3. KINETICS : POTENTIAL ENERGY OF REACTION GRAPH
3/2/07
Sum of P.E. reactants and forward activation energy = activated complex
Sum of P.E. products and reverse activation energy = activated complex
100 kJ
90 kJ
80 kJ
ACTIVATION
ENERGY
REVERSE ACTIVATION
ACTIVATED COMPLEX P.E.
70 kJ
60 kJ
REACTANTS P.E.
50 kJ
40 kJ
30 kJ
PRODUCTS P.E.
20 kJ
10 kJ

4. KINETICS : POTENTIAL ENERGY OF REACTION GRAPH
SLIDE#4 3/2/07
100 kJ
FORWARD ACTIVATION WITH CATALYST
90 kJ
80 kJ
ACTIVATION
ENERGY
ACTIVATED COMPLEX P.E.
REVERSE ACTIVATION
REVERSE ACTIVATION
WITH CATALYST
ACTIVATED COMPLEX P.E.
CATALYZED
70 kJ
60 kJ
REACTANTS P.E.
50 kJ
40 kJ
30 kJ
PRODUCTS P.E.
20 kJ
10 kJ

5. KINETICS : POTENTIAL ENERGY OF REACTION GRAPH
SLIDE 5 3/2/07
100 kJ
90 kJ
80 kJ
ACTIVATION
ENERGY
REVERSE ACTIVATION
ACTIVATED COMPLEX P.E.
70 kJ
60 kJ
∆H(-)
HEAT OF
REACTION
50 kJ
40 kJ
30 kJ
PRODUCTS P.E.
20 kJ
10 kJ

6. KINETICS : POTENTIAL ENERGY OF REACTION GRAPH
SLIDE 6 3/2/07
100 kJ
90 kJ
80 kJ
ACTIVATED COMPLEX P.E.
ACTIVATION
ENERGY
ACTIVATION
REVERSE
70 kJ
60 kJ
PRODUCTS P.E.
∆H(+)
HEAT OF
REACTION
50 kJ
40 kJ
30 kJ
REACTANTS
P.E.
20 kJ
10 kJ

7. U DO IT NOW – PRACTICE IN GROUPS
1) What is the value of ∆H (kJ) in the reaction shown in the slide #1, show draw the curve and show arrows.
2) What is the value of THE FORWARD AND REVERSE ACTIVATION ENERGY (kJ) IN SLIDE #1, show arrow addition equalities.
3) What is the value of THE ACTIVATED COMPLEX ENERGY LEVEL (kJ) IN SLIDE #1, show arrow addition equalities.
4) What is the value energy difference between the activation energy and catalyzed activation energy IN SLIDE #4.