Consider the reaction: N2(g) 2 O2(g)N2O4(g) Write the equilibrium constant for this reaction in terms of the equilibrium constants, Ka and Kb, for reactions a and b below: a.) N2O4(g) 2NO2(g) Ka b.) 1/2 N2(g) O2(g) NO2(g) Kb

Answer : The equilibrium constant for this reaction is,

Explanation :

The given main chemical reaction is:

;  

The intermediate reactions are:

(1) ;  

(2) ;  

We are reversing reaction 1 and multiplying reaction 2 by 2 and then adding both reaction, we get:

(1) ;  

(2) ;  

Thus, the equilibrium constant for this reaction will be:

Thus, the equilibrium constant for this reaction is,

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.