1a. Collision theory helps us to explain the factors affecting the rate of reactions between molecules. Select all of the following that should increase the rate of a reaction.
Increasing the concentration of the reactants.
Using complex molecules that have a limited number of sites where a collision will be successful.
Adding a catalyst that decreases the size of Ea.
Increasing the volume of the solution by dilution.
Decreasing the temperature of the reaction.
1b. Select all of the following that would act to make the value of k become smaller.
The temperature of the reaction is decreased.
The reactant has many sites for a successful collision to occur.
A catalyst is used which acts to lower the activation energy for the reaction.
The mobility of the molecules is decreased so that there are fewer collisions.
The reaction is heated.
The concentration of the reactant is increased.
1a. Collision theory helps us to explain the factors affecting the rate of reactions between molecules. Select all of the following that should increase the rate of a reaction.
Increasing the concentration of the reactants.
Using complex molecules that have a limited number of sites where a collision will be successful.
Adding a catalyst that decreases the size of Ea.
Increasing the volume of the solution by dilution.
Decreasing the temperature of the reaction.
1b. Select all of the following that would act to make the value of k become smaller.
The temperature of the reaction is decreased.
The reactant has many sites for a successful collision to occur.
A catalyst is used which acts to lower the activation energy for the reaction.
The mobility of the molecules is decreased so that there are fewer collisions.
The reaction is heated.
The concentration of the reactant is increased.
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