Chapter 12, Problem 12.42PAE

The experiment in Exercise 12.33 was redesigned so that the reaction started with 0.15 mol each of N₂ and O₂ being injected into a 1.0-L container at 2500 K. The equilibrium constant at 2500 K is 3.6 X 10“’. What was the composition of the reaction mixture after equilibrium was attained?

The following reaction establishes equilibrium at 2000 K:

N₂(g) + O₂(g) *2 2 NO
K = 4.1 X IO-4

If the reaction began with 0.100 mol L-1 of N₂ and 0.100 mol L-’ ofO₂, what were the equilibrium concentrations of all species?