Rates Of Reaction

Question 1

How can you measure the rate of reaction?

Answer 1

The rate of any chemical reaction can be measured by measuring how quickly a reactant is used up or how quickly a product is formed.

Question 2

What are the factors effecting rate of reaction?

Answer 2

Temperature
Pressure
Catalyst 
Surface area
Concentration

Question 3

What is collision theory?

Answer 3

For a reaction to occur particles must collide frequently and with enough energy.

Question 4

What is activation energy?

Answer 4

The minimum amount of energy required to start a reaction.

Question 5

What does a catalyst do?

Answer 5

Catalysts lowers the activation energy needed for a reaction to take place. This reduces energy needed to start a reaction.

Question 6

What are advantages of catalysts?

Answer 6

Allow greater profit in industry
They can be re used
They increase rate of reaction so save money
Lowers activation energy reducing environmental impacts

Question 7

What are the disadvantages of catalysts?

Answer 7

Expensive to buy
Require regular cleaning
Different catalysts required for different reactions
Poisoned catalysts- a catalyst with impurities stopping reactions happening