rates of reaction

Question 1

How does the temperature affect rates of reaction?

Answer 1

if temperature is increased particles have more energy.

There is more successful collisions so there will be a faster rate of reaction.

Question 2

How does concentration affect rates of reaction?

Answer 2

there are more particles per unit volume
there is more chance of particles colliding
this means more successful reactions.

Question 3

What is the definition of the rate of a reaction?

Answer 3

The rate of a reaction is the change in concentration of a reactant or product per unit time.

Question 4

True or False: Increasing the temperature generally increases the rate of a chemical reaction.

Answer 4

True

Question 5

Fill in the blank: The rate of reaction can be affected by factors such as temperature, concentration, surface area, and _______.

Answer 5

catalysts

Question 6

Which of the following factors increases the rate of reaction? A) Decreasing temperature B) Increasing concentration C) Reducing surface area

Answer 6

B) Increasing concentration

Question 7

What is the effect of a catalyst on the rate of a reaction?

Answer 7

A catalyst increases the rate of a reaction by lowering the activation energy required.