2) Write the equilib and for the the decomsim constant expressions for the forma

Question

2) Write the equilib and for the the decomsim constant expressions for the formation of N 04(g) from NO2tg) composition of N204(g) to NO2(g) Step 1: Write out a balanced chemical equation Step 2: Use the balanced chemical equation to write reaction [formation of N204(g)). the equilibrium expression for the forward Keq= Step 3: Use the balanced chemical equation to write the equilibrium expression for the reverse reaction [decomposition of N204(g)]. Keq = How are the equilibrium expressions for the forward and reverse reactions related? How can the relationship be expressed mathematically? 3) 4) If a reaction in the forward direction has a Keg equal to 3.0, what is the Kes for the reaction in the reverse direction?

Explanation / Answer

Ans 2 :

Step 1 :

The balanced reaction for the formation of N2O4 is given as :

2NO2 <---> N2O4

Step 2 :

The equillibrium expression for the forward reaction is given as :

Keq = [N2O4] / [NO2]2

Step 3 :

The equillibrium expression for the reverse reaction is given as :

Keq = [NO2]2 / [N2O4]

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