MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Brønsted–Lowry Acids#Chemical Equilibrium141Choose the best answerConjugated acid of NH₃ is:ANH₄⁺BNHCNH₂DNH₂⁻ Like 0 Discuss 0Share
Chemical EquilibriumEffect of Temperature and Pressure on Equilibrium142Choose the best answerFor 2SO₂(g) + O₂(g) ⇌ 2SO₃(g) + heat, the best conditions for a high equilibrium yield of SO₃ are:AHigh temperature and high pressureBHigh temperature and low pressureCLow temperature and high pressureDLow temperature and low pressure Like 0 Discuss 0Share
Chemical EquilibriumEffect of Concentration on Equilibrium143Choose the best answerFor PCl₃(g) + Cl₂(g) ⇌ PCl₅(g), equilibrium shifts to the right when:ATemperature is necessarily increasedBVolume is doubledCCl₂ is added at constant volumeDPCl₅ is added Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc144Choose the best answerFor a reversible reaction at equilibrium, how is Kc related to the forward and reverse rate constants?AKc = kr/kfBKc = kf + krCKc = kf/krDKc = kf × kr Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Equilibrium Constant145Choose the best answerFor aA + bB ⇌ cC + dD, which expression gives the equilibrium constant according to the law of mass action?A[A]ᵃ[B]ᵇ / [C]ᶜ[D]ᵈB[C]ᶜ[D]ᵈ / [A]ᵃ[B]ᵇC[C][D] / [A][B]D([A] + [B]) / ([C] + [D]) Like 0 Discuss 0Share