Question

Write the equilibrium constant expression for this reaction: h2so4 (aq) → 2h+ (aq) + so−24 (aq)

Answer 1

`Keq =([H+]^(2) [SO4^(2-)]^(2)  )/([H2SO4])`

Step-by-step explanation:

The equilibrium constant K is a parameter that relates the concentration of products to that of the reactants at equilibrium and under a given temperature.

Consider a hypothetical reaction:

xA + yB ↔ zC

where A and B are the reactants ; C is the product

x and y are the coefficients of the reactants; z is the product coefficient

The equilibrium constant is given as:

`Keq = ([C]^(z) )/([A]^(x)[B]^(y))`

The given reaction is:

`H2SO4(aq)\rightleftharpoons 2H+(aq)+ SO_(4)^(2-)(aq)`

`Keq =([H+]^(2) [SO4^(2-)]^(2))/([H2SO4])`

Answer 2

when Kc = [the concentration of products]^(no.of its mol in the balanced equation) / [the concentration of the reactants]^(no.of mol in the balanced equation)
∴ The equilibrium constant expression for this reaction is:
Kc= [H+]^2 * [So4-2] / [H2SO4]