C8.3 The effect of temperature

Question 1

What is the name of the minimum amount of energy that particles need to react? (1 mark)

Answer 1

Activation energy

Question 2

How does increasing the surface area of solid reactants affect the rate of reaction? (2 marks)

Answer 2

Increasing the surface area increases the frequency of collision and increases the rate of reaction.

Question 3

How does increasing the temperature affect the rate of reaction? (2 marks)

Answer 3

Increasing the temperature increases the speed of the reacting particles.
This makes them collide more frequently and the rate of reaction increases.