At 2000°C the equilibrium constant for the reaction 9_1.gif is 9_2.gif If the initial concentration of 9_3.gif is 0.200 M, what are the equilibrium concentrations of 9_4.gif and 9_5.gif?

Explanation:

Hello,

In this case, for the given chemical reaction:

We know the equilibrium constant and equilibrium expression:

That in terms of the reaction extent (ICE procedure) we can write:

In such a way, solving for by using a quadratic equation or solver, we obtain:

Clearly the solution is 0.09899M since the other value will result in a negative equilibrium concentration of NO. In such a way, the equilibrium concentrations of all the species are:

Regards.