C8.4 The effect of concentration or pressure

Question 1

How does increasing the pressure of reacting gasses affect the rate of reaction? (2 marks)

Answer 1

Increasing the pressure increases the frequency of collisions and increases the rate of reaction.

Question 2

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

Answer 2

Increasing the concentration increases the frequency of collisions and increases the rate of reaction.

Question 3

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

Answer 3

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