S2 Rates of Reaction

Select four factors that affect the rate of reaction

• temperature

• concentration

• surface area

• volume

• catalysts

A temperature increase causes the particles to_____

• slow down

• move faster

• collide less often

• dance macarena

Tags

NGSS.HS-PS1-5

In an exothermic reaction, heat is ...

• taken in
• given out

Tags

NGSS.HS-PS1-4

Why does a higher concentration increase the rate of reaction?

• it increases the surface area of products

• it lowers the activation energy

• it increases the energy of particle collisions

• it increases the frequency of particle collisions

Tags

NGSS.HS-PS1-5

Why does a higher temperature increase the rate of a reaction?

• it increases both the frequency and energy of particle collisions

• it only increases the frequency of particle collisions

• it only increases the energy of particle collisions

• it reduces the activation energy of the reaction

Tags

NGSS.HS-PS1-5

The higher the concentration of the reactants, the more likely they are to react and form products.

• False!

• True!

• What is concentration?

What is the rate of reaction?

• How fast a reaction is

• How much gas a reaction produces

• How loud a reaction is

Located on the left side of the reaction equation

• reactants

• products

The minimum amount of energy needed for colliding particles to react is ______

• Deactivation Energy

• Kinetic Energy

• Activation Energy

• Potential Energy

Grinding a large tablet into powder increases the rate of reaction due to increased ________

• concentration

• surface area

• temperature

• reactants