A sample of air consisting of and was heated to until the equilibrium N_2(g) + O_2(g)…
CHEMISTRY · Subjective · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)
Problem
A sample of air consisting of N2 and O2 was heated to 2500 K until the equilibrium
N2(g)+O2(g)⇌2NO(g)
was established with an equilibrium constant KC=2.1×10−3. At equilibrium, the mole % of NO was 1.8. Estimate the initial composition of air in mole fraction of N2 and O2.