Question

At 2000°C the equilibrium constant for the reaction is Kc = 2.4 ✕ 103.
2 NO(g) equilibrium reaction arrow N2(g) + O2(g)
If the initial concentration of NO is 0.160 M, what are the equilibrium concentrations of NO, N2, and O2?

<i>I do not even know how to approach this question.</i>

Answer 1

You do it all with an ICE chart.

...........2NO ==> N2 + O2
I........0.160.....0.....0
C..........-2x.....x.....x
E.......0.160-2x...x.....x

Substitute the E line into the Keq expression and solve for x and 0.150-x.
Post your work if you get stuck.