Write the expression for the equilibrium constant `K_(c )` for each of the following reactions:
a. `2NOCl(g) hArr 2NO(g)+Cl_(2)(g)`
b. `2Cu(NO_(3))_(2)(s) hArr 2CuO(s)+4NO_(2)(g)+O_(2)(g)`
c. `CH_(3)COOC_(2)H_(5)(aq)+H_(2)O(1) hArr CH_(3)COOH(aq)+C_(2)H_(5)OH(aq)`
d. `Fe^(3+)(aq)+3OH^(Θ)(aq) hArr Fe(OH)_(3)(s)`
e. `I_(2)(s)+5F_(2) hArr 2IF_(5)`

Explanation

To write the equilibrium constant expression \( K_c \) for each of the given reactions, we will follow the general formula for \( K_c \):

\[ K_c = \frac{[\text{Products}]^{\text{coefficients}}}{[\text{Reactants}]^{\text{coefficients}}} \]

Note that we only include the concentrations of gaseous and aqueous species in the equilibrium expression, while pure solids and liquids are not included because their concentrations do not change during the reaction.

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