Answer:
[tex]\frac{[SO3][NO]}{[SO2][NO2]}[/tex]
Option D is the right answer.
Explanation:
When the rate of the forward reaction equals the rate of the reverse reaction, the chemical reaction is in equilibrium. The equilibrium constant (Kc) is used to determine whether reaction is in the equilibrium or not.
Example:
aA+bB⇋cC+dD
Equilibrium constant (Kc) for this reaction will be
Kc = [tex]\frac{[C]^c [D]^d}{[A]^a [B]^b}[/tex]
In this equation, [A] and [B] are equilibrium reactant concentrations. [C] and [D] are equilibrium product concentration and a, b, c, and d are the stoichiometric coefficients of the balanced reaction.
In our reaction,
SO2(g) + NO2(g) = S03(g) + NO(g)
Kc or Keq will be
Keq = [tex]\frac{[SO3][NO]}{[SO2][NO2]}[/tex]
This equation is balanced without any stoichiometric coefficients.
