Write the equation for the equilibrium that corresponds to each of the following reaction quotients.

a. Qc= [HCL]^2/ [H2][Cl2]
b. Qc= [HF]/ [H+][F-]
c. Qc= [Cr(OH4)]-/ [Cr3+][OH]-4
d. Qc= [H+][HSO3]-/ [H2SO3]
e. Qc= [NOBr]^2/[NO]^2 [Br2]

a.

b.

c.

d.

e.

Explanation:

The reaction quotient of an equilibrium reaction measures relative amounts of the products and the reactants present during the course of the reaction at  particular point in the time.

Q < Kc , reaction will proceed in forward direction.

Q > Kc , reaction will proceed in backward direction.

Q = Kc , reaction at equilibrium.

It is the ratio of the concentration of the products and the reactants each raised to their stoichiometric coefficients. The concentration of the liquid and the gaseous species does not change and thus is not written in the expression.

a. For the expression

The equilibrium reaction is:-

b. For the expression

The equilibrium reaction is:-

c. For the expression

The equilibrium reaction is:-

d. For the expression

The equilibrium reaction is:-

e. For the expression

The equilibrium reaction is:-