Write the equilibrium constant expression for the reaction: 2NO +2H2 =N2+2H2O
Kc=?
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Kc = (N2)(H2O)^2/(NO)^2(H2)^2
The equilibrium constant expression, Kc, for the given reaction is as follows:
Kc = [N2][H2O]^2 / [NO]^2[H2]^2
To write the equilibrium constant expression (Kc) for a reaction, you need to use the molar concentrations of the reactants and products at equilibrium.
The equilibrium constant expression is determined by the balanced chemical equation. In this case, the balanced equation for the reaction is:
2NO + 2H2 -> N2 + 2H2O
The equilibrium constant expression is a ratio of the product concentrations to reactant concentrations, each raised to the power of their respective stoichiometric coefficients.
So, the Kc expression for this reaction is:
Kc = [N2] * [H2O]^2 / [NO]^2 * [H2]^2
Here, square brackets denote molar concentrations, and the coefficients before each species represent their stoichiometric coefficients in the balanced equation.