Collision Theory in Chemistry

State the effect of increasing the surface area on the rate of a reaction

• Increases

• Decreases

• Stays the same

Increasing the concentration …........................ the rate of reaction

• Increases

• Decreases

• Stays the same

Tags

NGSS.HS-PS1-5

How does increasing gas pressure change the rate of reaction?

• Increases

• Decreases

• Stays the same

Tags

NGSS.HS-PS1-5

What is the activation energy?

• The minimum energy a particle needs to react

• The maxmum energy a particle needs to react

Increasing the pressure of a reaction in which reactants are gaseous will lead to the rate of reaction...

• ... decreasing

• ... increasing

Why does a higher concentration increase the rate of reaction?

• It lowers the activation energy

• It increases the frequency of particle collisions

• It increases the amount of reactants

• It increases the energy of particle collisions

Tags

NGSS.HS-PS1-5

What makes an effective collision?

• When molecules collide with proper orientation and enough kinetic energy.

• When molecules collide.

• When molecules collide with the proper orientation.

• High Temperature.

Tags

NGSS.HS-PS1-5

The collisions which bring about a chemical reaction are called:

• Consistent collisions

• Normal collisions

• Effective collisions

• Constant collisions

Tags

NGSS.HS-PS1-5

What is the main concept of Collision Theory in Chemistry?

• Particles must collide to react

• Particles must be stationary to react

• Particles must be in a liquid state to react

• Particles must be in a gaseous state to react

Tags

NGSS.HS-PS1-5

Which factor does NOT affect the rate of reaction according to Collision Theory?

• Temperature

• Concentration

• Surface area

• Color of reactants

Tags

NGSS.HS-PS1-5