Question

How do you find the Keq equation?

Answer 1

Well, you need the chemical equation first.

Explanation:

Typically `K_"eq"` `=` `"Concentrations of reactants"/"Concentration of products"`. Each term is appropriately modified depending on its multiplicity in the defining chemical equation.

Say for dinitrogen fixation:

`N_2(g) +3H_2(g) rightleftharpoons 2NH_3(g)`

`K_"eq"` `=` `([NH_3]^2)/([N_2][H_2]^3)`