Question

At 700 K equilibrium constant for the reaction;

H_2(g) +I_2(g) ⇌ 2HI_(g) is 54.8. If 0.5 mol litre^-1 of HI(g) is present at equilibrium at 700 K, what are the concentrations of H_2(g) and I_2(g) assuming that we initially started with HI_(g) and allowed it to reach equilibrium at 700 K.

Answer 1

Since at equilibrium equal conc. of H₂ and I₂ will exist if dissociation of HI is carried out. Thus,