Rate Of Reaction

Question 0

Rate formula:

Answer 0

Rate= Change in concentration

                      ➗
                    Time

Question 1

What does ‘more concentrated mean’?

Answer 1

Means there are more particles of acid per unit volume.

Question 2

For a reaction to happen particles…

Answer 2

…have to collide

Question 3

The more collisions there are and the harder the collisions are between particles…

Answer 3

…the faster the rate

Question 4

What is the ‘minimum energy’ a particle needs to start a reaction called?

Answer 4

Activation energy

Question 5

How rate of reaction varies with temperature- increasing temperature…

Answer 5

➡️particles move faster
➡️more collisions
➡️harder collisions

=reactions happens faster

Question 6

Symbols-

➡️aq
➡️g
➡️s

Answer 6

➡️dissolved
➡️gas
➡️solid

Question 7

Effective 4 collisions (collisions that cause reactions):

Answer 7

➡️temperature
➡️surface area
➡️concentration
➡️pressure of gas & catalyst

Question 8

Factors effecting rate-

Answer 8

Reactants are used up as they make products.

Question 9

What is a catalyst-

Answer 9

It helps speed up/start a reaction