Factors That Affect the Rates of Reactions

The rate of a chemical reaction is NOT affected by which of the following:

• temperature

• concentration

• particle size (surface area)

• All of these affect reaction rates

Tags

NGSS.HS-PS1-5

The rate of a reaction increases as temperature__________________.

• Decreases

• Increases

• Stays the Same

Tags

NGSS.HS-PS1-5

The ___________ the surface area of the reactants, the faster the reaction rate.

• larger 

• smaller

What effect does increasing the concentration of reactants have on the rate of reaction?

• It decreases the rate of reaction.

• It has no effect on the rate of reaction.

• It increases the rate of reaction.

• It stops the reaction.

Tags

NGSS.HS-PS1-5

NGSS.HS-PS1-6

How does increasing the temperature generally affect the rate of a chemical reaction?

• It decreases the reaction rate.

• It has no effect on the reaction rate.

• It increases the reaction rate.

• It stops the reaction.

Tags

NGSS.HS-PS1-5

which factor that affect reaction rate is represented?

• Temperature

• Catalyst

• Surface Area

• Concentration

Tags

NGSS.HS-PS1-5

Which of the following factors does NOT affect the rate of a chemical reaction?

• Temperature

• Concentration of reactants

• Color of reactants

• Surface area of reactants

Tags

NGSS.HS-PS1-5

A ______________ is a substance that increases the rate of a reaction without being used up during the reaction. 

• catalyst

• product

• reactant

• solute

Tags

NGSS.HS-PS1-5

Catalysts permit reactions to proceed along a ___________energy path.

• lower

• higher

Tags

NGSS.HS-PS1-4

Smaller particle size allows for a _________ surface area to be exposed for the reaction.

• larger

• smaller