## Chemistry: The Central Science (13th Edition)

$K_{c} = \frac{[N_{2}O][NO_{2}]}{[NO]^3}$
The expression for Kc is the concentration of products raised to their respective stoichiometric coefficients divided by the concentration of the reactants raised to their stoichiometric coefficients. For the reaction: 3 NO N2O + NO2 we would have $K_{c} = \frac{[N_{2}O][NO_{2}]}{[NO]^3}$