Chemical EquilibriumActive Mass and Dynamic Equilibrium56Choose the best answerWhich statement is false?AIncreasing reactant concentration generally decreases reaction rateBDynamic equilibrium occurs when forward and reverse rates are equalCDissociation of a weak electrolyte is reversibleDFree ions can participate readily in chemical reactions Like 0 Discuss 0Share
Chemical EquilibriumUnits of Kc57Choose the best answerFor A + B ⇌ C, the unit of Kc, using concentration units, is:Amol dm⁻³Bdm³ mol⁻¹Cmol dm³Ddm⁻³ mol Like 0 Discuss 0Share
Chemical EquilibriumEquilibrium Constant for Reverse Reaction58Choose 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 Pressure on Equilibrium59Choose the best answerIncreasing pressure has what effect on 2A(g) + 3B(g) ⇌ 3A(g) + 2B(g)?AShifts equilibrium forwardBShifts equilibrium backwardCNo effect on equilibrium positionDStops the reaction Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc60Choose the best answerFor Fe³⁺(aq) + 4Cl⁻(aq) ⇌ FeCl₄⁻(aq), which expression represents Kc?A[Fe³⁺][Cl⁻]⁴ / [FeCl₄⁻]B[FeCl₄⁻] / [Fe³⁺][Cl⁻]⁴C[FeCl₄⁻] / [Fe³⁺][Cl⁻]D[FeCl₄⁻]⁴ / [Fe³⁺][Cl⁻] Like 0 Discuss 0Share