If at equilibrium there
are significant amounts of both product and reactants,
then the reaction can be described in terms of a K value, or equilibrium constant. For any reaction:
aA + bB — cC + dD
the Keq is defined
as:
Keq = [C]c [D]d [A]a [B]bNote: The value
of the equilibrium constant may be determined from
experimental data if the concentrations of both the reactants and
the products are known.
Equilibrium
Constant, Keq