Chemical EquilibriumLe Chatelier’s Principle31Choose the best answerThe reaction CaCO₃(s) ⇌ CaO(s) + CO₂(g) can proceed nearly to completion in a lime kiln because:ATemperature has no effectBCaO is always more stable than CaCO₃CCaO continuously decomposesDCO₂ is continuously removed Like 0 Discuss 0Share
Chemical EquilibriumEffect of Pressure on Equilibrium32Choose 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 Catalyst on Equilibrium33Choose the best answerWhich statement correctly describes the effect of a catalyst on an equilibrium mixture?AIt changes the equilibrium constantBIt shifts equilibrium permanently toward productsCIt does not change the equilibrium compositionDIt stops the reverse reaction Like 0 Discuss 0Share
Chemical EquilibriumEffect of Pressure on Equilibrium34Choose 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
Chemical EquilibriumEffect of Temperature on Equilibrium35Choose the best answerFor A + B + heat ⇌ C + D, increasing temperature causes the concentration of products to:AIncreaseBDecreaseCRemain unchangedDBecome zero Like 0 Discuss 0Share