Kinetics (videos)

Question 1

What is the general equation for calculating Keq?

Answer 1

[products] / [reactants]

Question 2

For a reversible unimolecular reaction, how do you calculate the proportion of molecules in A and in B?

Answer 2

-in A = [A] / ([A] + [B])
-in B = [B] / ([A] + [B])

Question 3

How do you simplify the equations for the proportion of molecules in A and in B for reversible unimolecular reactions?

Answer 3

-B = ([B]/[A]) / (([A]+[B])/[A])
= Keq / (1 + Keq)
-A = ([A]/[A]) / (([A]+[B])/[A])
= 1 / (1 + Keq)

Question 4

For a bimolecular irreversible reaction to occur, what needs to take place?

Answer 4

A + B need to collide in correct orientation + violently enough

Question 5

What is the rate of formation of the product in a bimolecular irreversible reaction?

Answer 5

Rate of C formation = k[A][B]
-d[C]/dt = K[A][B]

Question 6

What order of reaction are bimolecular irreversible reactions?

Answer 6

-second order rate law
-k is a second order rate constant