of Bu
200
150-
100
50
0
(
4113
(iv)
GD
Progress of Reaction
8. Which Roman numeral in the diagram (i to iv) represents the energy of the
reactants? (1)
9. Which Roman numeral indicates the energy of the products? 150-200
10. Describe the relative energy levels and stability of the reactants and products.
11. Which Roman numeral indicates the activation energy?
12. Does the diagram represent an exothermic or endothermic reaction? Explain your
answer.
13. Which Ronan numeral indicates the overall energy change?.
14. How much energy is released or absorbed during the reaction?
