What are the values of K p K c for the following reactions at 300   K respectively? (At 300   K ,   RT = 24 .62   dm 2 atm   mol - 1 ) N 2   g + O 2   g ⇌ 2 NO   g N 2 O 4   g ⇌ 2 NO   g N 2   g + 3 H 2   g ⇌ 2 NH 3   g

Step-by-step solution

∵   K P = K C RT Δng K P K C = RT Δng (i) N 2 + O 2 ⇌ 2 NO   Δng = 0 ∴ K P K C = 1 (ii) N 2 O 4 ⇌ 2 Na 2   Δng = 1   ∴ K P K C = RT 1 = 24 .62 1 (iii) N 2 + 3 H 2 ⇌ 2   NH 3   Δng = - 2 ∴ K P K C = RT - 2 = 24 .62 - 2 = 1 .659 × 10 - 3 ≃ 1.65 × 10 − 3