Collision Theory

Activation energy is the amount of energy required

to ____________.

• a. Break the bonds between the reacting molecules

• b. Make the reacting particles collide

• c. Form the bonds between the product molecules

• d. Convert the reactant to a single product

Tags

NGSS.HS-PS1-4

What is collision theory?

• Molecules must collide in the correct orientation with enough energy to bond.

• Molecules need enough energy to collide and react.

• Atoms constantly collide and react.

• The minimum energy needed for atoms to react

Complete the statement: Collision theory explains rate of chemical reaction by ___________________________.

• the amount of reactant available

• the frequency of particle collisions

• measuring gas volumes

• the type of reactants

Tags

NGSS.HS-PS1-5

If you shrink the container size that your gas substance is in what will happen?

• The reaction rate will stay the same (same # of collisions)

• The reaction rate will speed up (more collisions)

• The reaction rate will slow down (less collisions)

Tags

NGSS.HS-PS1-5

Increasing the temperature of your solution will.......

• Not affect the rate of reaction, collisions are unaffected

• Speed up the rate of reaction due to make MORE collisions

• Slow down the rate of reaction due to there being LESS collisions

Tags

NGSS.HS-PS1-5

Under the collision theory, the particles must collide ____ and ____ for a reaction to occur.

• sufficient rate and sufficient energy

• sufficient surface area and correct orientation

• sufficient catalyst and sufficient energy

• sufficent energy and correct orientation

More collisions correspond to a: 

• Faster reaction rate  

• Slower reaction rate

• Constant reaction rate 

• None of the above

Tags

NGSS.HS-PS1-5

The collisions which bring about a chemical reaction are called: 

• Consistent collisions

•  Normal collisions 

• Effective collisions 

• None of the above

Tags

NGSS.HS-PS1-5

What would be the effect on the particles if more heat is supplied to the system?

• They would slow down

• They would stop moving

• They would speed up

• There would be no effect

Tags

NGSS.HS-PS1-5

How does raising the temperature affect collisions?

• Causes collisions to be more frequent and with higher energy.

• Causes collisions to be LESS frequent and with higher energy.

• Causes collisions to be LESS frequent and with lower energy.

• Causes collisions to be more frequent and with lower energy.

Tags

NGSS.HS-PS1-5