Chemical EquilibriumMagnitude of Equilibrium Constant and Stability46Choose the best answerWhich nitrogen oxide is most stable against decomposition according to the following decomposition equilibrium constants?A2NO₂ ⇌ N₂ + 2O₂; K = 6.7 × 10⁻¹⁶B2NO ⇌ N₂ + O₂; K = 2.2 × 10⁻³⁰C2N₂O₅ ⇌ 2N₂ + 5O₂; K = 1.2 × 10⁻³⁴D2N₂O ⇌ 2N₂ + O₂; K = 3.5 × 10⁻³³ Like 0 Discuss 0Share
Chemical EquilibriumEquilibrium Constant for Reverse Reaction47Choose the best answerIf K₁ is the equilibrium constant for 2NO(g) + O₂(g) ⇌ 2NO₂(g), the equilibrium constant K₂ for 2NO₂(g) ⇌ 2NO(g) + O₂(g) is:AK₂ = 1/K₁BK₂ = K₁²CK₂ = 1/K₁²DK₂ = K₁ Like 0 Discuss 0Share
Chemical EquilibriumEffect of Temperature on Equilibrium48Choose the best answerRaising the temperature of an equilibrium system generally favours:AThe exothermic direction onlyBThe endothermic directionCBoth directions equallyDNeither direction Like 0 Discuss 0Share
Chemical EquilibriumEffect of Pressure on Equilibrium49Choose the best answerWhich equilibrium is shifted toward products by decreasing pressure?AN₂(g) + 3H₂(g) ⇌ 2NH₃(g)BH₂(g) + I₂(g) ⇌ 2HI(g)CPCl₅(g) ⇌ PCl₃(g) + Cl₂(g)DN₂(g) + O₂(g) ⇌ 2NO(g) Like 0 Discuss 0Share
Chemical EquilibriumEffect of Pressure on Equilibrium50Choose the best answerWhich equilibrium is unaffected by pressure change because the total number of gaseous moles is equal on both sides?AN₂(g) + O₂(g) ⇌ 2NO(g)BPCl₅(g) ⇌ PCl₃(g) + Cl₂(g)CN₂(g) + 3H₂(g) ⇌ 2NH₃(g)DSO₂Cl₂(g) ⇌ SO₂(g) + Cl₂(g) Like 0 Discuss 0Share