Question

Which statements are true regarding reaction rates? [Select all that apply.]

1.Group of answer choices Larger activation energies are associated with faster reaction rates.

2.Higher reactant concentrations are associated with faster reaction rates.

3.Reducing the activation energy for a reaction increases its reaction rate.

4.Reaction rates depend on how likely molecules are to collide in the correct orientation to react.

5.Reactions that give off heat occur rapidly. Reactions that absorb heat occur rapidly.

6.Large changes in enthalpy are associated with fast reaction rates.

At high temperatures molecules are more likely to collide with enough energy to initiate a reaction.

7.Two molecules must collide with one another to react.

Answer 1

From the set of options given above for the reaction rate. The true statements are as follows.

3. Reducing the activation energy for a reaction increases the reaction rate.

4. Reaction rate depends on how likely molecules are to collide in the correct orientation to react.

At high temperature, molecules are more likely to collide with enough energy to initiate a reaction.

7. Two molecules should collide with one another to react.