Question

Identify the equiLiBrium constant expression for the equation: 4 HCl(aq) + O₂(g) ⇌ 2 H₂O(l) + 2 Cl₂(g)

1) K_eq = [Cl₂]² / [HCl]⁴[O₂]
2) K_eq = [HCl]⁴[O₂] / [Cl₂]²
3) K_eq = [H₂O]²[Cl₂]² / [HCl]⁴[O₂]
4) K_eq = [H₂O]² / [HCl]⁴[O₂]

Answer 1

The equilibrium constant expression for the given equation is K_eq = [HCl]⁴[O₂] / [Cl₂]².

Step-by-step explanation:

The equilibrium constant expression for the given equation is: K_eq = [HCl]⁴[O₂] / [Cl₂]².

This expression represents the ratio of the concentrations of the products (H₂O and Cl₂) raised to their respective coefficients (2) and the concentrations of the reactants (HCl and O₂) raised to their respective coefficients (4).

It's important to note that the expression does not include the concentration of H₂O because it is in the liquid state and is considered a pure liquid.