C6 - The Rate and Extent of Chemical Change

Question 1

What is the rate of a reaction?

Answer 1

How fast the reactants are changed into products.

Question 2

If the reaction time graph is steep, what is the rate of reaction?

Answer 2

Fast.

Question 3

What does a chemical reaction depend on?

Answer 3

1) The frequency of particle collisions.
2) The energy transferred in a collision.

Question 4

What factors affect rate of reaction?

Answer 4

1) Temperature.
2) The concentrate of a solution or the pressure of a gas.
3) Surface area.
4) Presence of a catalyst.

Question 5

What happens when you increase the temperature?

Answer 5

• The particles move faster.
• They collide more frequently.
• They have more energy.

Question 6

How does increasing the concentration and pressure affect the rate of a reaction?

Answer 6

• There are more particles.
• The collisions are more frequent.