Identify the correct equilibrium constant, Keg, expression 2H2(g)+02(g)<->2H20(l)?

To identify the correct equilibrium constant expression, Keg, we need to understand the balanced chemical equation for the given reaction:

2H2(g) + O2(g) <-> 2H2O(l)

The equilibrium constant expression, Keg, is determined using the molar concentrations of the reactants and products involved in the reaction.

Keg is expressed as the ratio of the product concentrations to the reactant concentrations, each raised to the power of their respective stoichiometric coefficients.

For the given reaction, the equilibrium constant expression would be as follows:

Keg = [H2O]^2 / [H2]^2 [O2]

Note that square brackets ([ ]) represent the concentration of the species. The stoichiometric coefficients are used as exponents to represent the proportional relationship between the concentrations.

Therefore, the correct equilibrium constant expression for the given reaction is Keg = [H2O]^2 / [H2]^2 [O2].