Question

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

Answer 1

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]

Answer 2

Answer:

$Keq =\frac{[H+]^{2} [SO4^{2-}]^{2} }{[H2SO4]}$

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:

$Keq = \frac{[C]^{z} }{[A]^{x}[B]^{y}}$

The given reaction is:

$H2SO4(aq)\rightleftharpoons 2H+(aq)+ SO_{4}^{2-}(aq)$

$Keq =\frac{[H+]^{2} [SO4^{2-}]^{2}}{[H2SO4]}$