rates of reaction

Question 1

What is the rate of reaction measuring?

Answer 1

How fast a chemical reaction is occurring.

Question 2

What are the two equations for measuring the mean rate of the reaction?

Answer 2

mean rate of reaction = quantity or reactant used ÷ time
mean rate of reaction = quantity of product used ÷ time

Question 3

What must particles do in order to react?

Answer 3

collide with each other

Question 4

What is activation energy?

Answer 4

minimum amount of reaction required for a chemical reaction to occur.

Question 5

List five factors that affect the rate of reaction?

Answer 5

The 5 factors are:
Temperature
Pressure
Surface area
Concentration
Catalyst

Question 6

How can you increase the surface area of a solid reactant?

Answer 6

To increase the surface area use smaller pieces of the solid.

Question 7

Explain why changing the surface area has that affect?

Answer 7

Increasing the surface area increase the rate of reaction.

Question 8

What does a catalyst do?

Answer 8

Speeds up a reaction without being used up.

Question 9

What happens in a reversible reaction?

Answer 9

The products can react to form the reactants. Use a ⇌ arrow.

Question 10

What is a dynamic equilibrium?

Answer 10

System where both the forward and backward reaction are taking place simultaneously and at the same rate.

Question 11

State Le Chatilliers Principle?

Answer 11

If a change is made to the conditions of a system at equilibrium, then the position of the equilibrium moves to oppose that change in conditions.