Question #8c1a7

1 Answer
Aug 4, 2017

The correct equilibrium expression is K_text(eq) = (["NH"_3]^2)/(["N"_2]["H"_2]^3).

Explanation:

An equilibrium constant expression is written in the form

K_text(eq) = (["Products"])/(["Reactants"])

where the concentration of each product and of each reactant is raised to a power equal to its coefficient in the balanced equation.

Thus, for the reaction

"N"_2"(g)" + "3H"_2"(g)" ⇌"2NH"_3"(g)"

the equilibrium expression is

K_text(eq) = (["NH"_3]^2)/(["N"_2]["H"_2]^3)

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