<u>Answer:</u> The expression for equilibrium constant in terms of concentration is given below.
<u>Explanation:</u>
Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric coefficients. It is represented by
For a general chemical reaction:
The is written as:
The concentration of pure solid and pure liquid are taken as 1 in equilibrium expression.
For the given chemical reaction:
The expression for for the given reaction follows:
Here, A and B both are pure solid and pure liquid respectively. Thus, their concentration are taken as 1.
Thus, the expression becomes:
[tex]K_{c}=[C]^2[D]^1[/tex
Hence, the expression for equilibrium constant in terms of concentration is given above.