The rate and extent of chemical change

Question 1

What factors affect the rate of reaction?

Answer 1

1) Temperature
2) Concentration/pressure
3) Surface Area
4) Catalysts

Question 2

What is the equation for measuring the rate of reaction?

Answer 2

                                   Time

Question 3

What is equllibrium?

Answer 3

When the forward reaction is working at the same rate as the backward reaction.

Question 4

When can equillibrium only take place?

Answer 4

In a closed system

Question 5

What does it mean when equillibrium is greater to the right?

Answer 5

The concentration is greater on the products than the reactants

Question 6

What is the endo/exo rule for reversible reactions?

Answer 6

If the forward reaction is exothermic, the backward reaction is endothermic and vise versa…

Question 7

Le Chatalliers principle

Answer 7

If you change the conditions of a reversible reaction, at equillibrium, the system will try to counter act that change

Question 8

What happens if you change the temperature of a reversible reaction?

Answer 8

Decrease the temperature, equillibrium will move to the exothermic side to produce more heat

Question 9

What happens if you change the pressure of a reversible reaction?

Answer 9

Increase the pressure, and the equilibrium will move to the side with fewer particles of gas

Question 10

What happens if you change the concentration in a reversible reaction?

Answer 10

Increase the reactants, and the equilibrium will move towards the products