Consider the reaction.

2 upper N upper o upper c l double-headed arrow 2 upper N upper O (g) plus upper C l subscript 2 (g).

At equilibrium, the concentrations are as follows.

[NOCl] = 1.4 ´ 10–2 M

[NO] = 1.2 ´ 10–3 M

[Cl2] = 2.2 ´ 10–3 M

What is the value of Keq for the reaction expressed in scientific notation?

The value of Keq for the reaction expressed in scientific notation is  

Explanation:

Equilibrium constant is defined as the ratio of concentration of products to the concentration of reactants each raised to the power their stoichiometric ratios.

For the given chemical reaction:

The expression for is written as:

The value of Keq for the reaction expressed in scientific notation is  

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