Chemical Equilibrium

Question 1

Law of mass action/Keq

Answer 1

Keq is the ratio of products to reactants at equilibrium (when the rates of the forward and reverse reactions are equal)

aA + bB = cC + dD

Keq = (C^c)(D^d)/(A^a)(B^b)
dependant on temp
larger Keq = rxn forms more product than reactant
Keq for reverse reaction: 1/Keq

Question 2

dynamic equilibrium

Answer 2

point at which the forward and reverse reaction rates are equal

Question 3

reaction quiotient

Answer 3

concentrations are not constant.

Question 4

f Q

Answer 4

reaction has not reached the equilibrium point.
deltaG is negative.
concentration of reactants is greater than the concentration of products.

Question 5

If Q=Keq, what is happening with the reaction?

Answer 5

reaction has reached equilibrium
deltaG is zero
concentrations of reactants and products are at equilibrium proportions