Why are there energy changes in chemical reactions? - OCR 21C

1

What word correctly describes a combustion reaction?

2

During an endothermic reaction what happens to the temperature of the surroundings?

3

In the energy level diagram for an exothermic reaction, where is the energy level of the products drawn?

4

In the energy level diagram for an endothermic reaction which way should the arrow be facing?

5

What effect does a high activation energy have on a reaction?

6

How is the overall energy change of the reaction shown on a reaction profile diagram?

7

How is the activation energy shown on a reaction profile diagram?

8

What effect does a catalyst have on the rate of a reaction?

9

How does a catalyst affect activation energy?

10

What name describes the energy change when bonds are broken?