R2.2 Collision Theory Quiz

According to collision theory, reactants must collide with proper orientation and sufficient _.

• activation energy

• temperature

• pressure

• surface area

Temperature measures the average _______ energy of a sample.

True or False: If a sample has a uniform temperature, then all the particles inside are moving at the same speed.

• True

• False

To increase the rate of reaction for a solid like calcium carbonate, we can ​ (a)   the chunks into a ​ (b)   as this helps to increase the ​ (c)   .

• crush
• powder
• surface area
• temperature
• pressure
• concentration

Increasing the concentration of a reactant will...

• Increase the rate of reaction

• Decreases the rate of reaction

• Have no effect on the rate of reaction

The minimum energy colliding particles need for a successful collision is the:

• Collision theory

• Catalyst

• Temperature

• Activation Energy

A temporary chemical formed in a reaction during which bonds are forming / breaking:

• Reactant

• Activated Complex

• Catalyst

• Product

Which of the following does NOT change the frequency of collisions?

• Increasing temperature

• Increasing concentration

• Increasing surface area

• Adding a catalyst

The two ways to increase the number of particles with E > E_a is to increase ​ (a)   or add a ​ (b)  

• temperature
• catalyst
• concentration
• pressure
• reactant

Which conditions must be met for a reaction to take place?

I. Reactants collide with sufficient energy.

II. Reactants collide with correct orientation.

III. Reactants must be in the same state.

• I and II only

• I and III only

• II and III only

• I, II and III.