14-2 Flashcards
A catalyst…
does not appear in the net reaction either.
However, the catalyst first reacts in one step (it is added at the very beginning) and is regenerated in another step. It would have appeared first on the left, and later on the right.
However, the catalyst does appear in the rate law.
A Reaction Intermediate…
made in one step, reacts in another step.
Does not appear in the net reaction and does not appear in the rate law. It cancels out when elementary steps are added.
The overall reaction cannot occur…
faster than the slowest reaction in the mechanism.
This step is called that the rate-determining step.
The rate constant must ___ as the temperature…
The rate constant must increase as temperature increases
A mechanism is…
a series of stepwise reactions that show how reactants become products.
Is lnk vs 1/T linear or exponential? Why?
Collision Theory (created by Arrhenius) explains that it’s linear.
Molecules can only react if they collude with each other.
Not all collisions are effective.
The activation energy is the minimum energy needed for a collision to be effective
