At high temperatures, elemental nitrogen and oxygen react with
each other to form nitrogen monoxide:
N2 (g) + O2 (g) ↔ 2NO (g)
Suppose the system is analyzed at a particular temperature, and
the equilibrium concentrations are found to be [N2] = 0.041 M,
[O2] = 0.0078 M, and [NO] = 4.7 x 10-4 M. Calculate the value of K
for the reaction.

Question

At high temperatures, elemental nitrogen and oxygen react with
each other to form nitrogen monoxide:
N2 (g) + O2 (g) ↔ 2NO (g)
Suppose the system is analyzed at a particular temperature, and
the equilibrium concentrations are found to be [N2] = 0.041 M,
[O2] = 0.0078 M, and [NO] = 4.7 x 10-4 M. Calculate the value of K
for the reaction.

frostbite · Answer

The equilibrium constant K, is given by the follow relation:
$$K=\frac{ [NO]^{2} }{ [N_{2}][O_{2}] }$$
Insert the values and calculate K.