Chemical EquilibriumLaw of Mass Action16Choose the best answerAccording to the law of mass action, reaction rate is related to the:AColour of reactantsBActive masses or molar concentrations of reactantsCMolecular masses of products onlyDVolume of the apparatus only Like 0 Discuss 0Share
Chemical EquilibriumSolubility Product and Molar Solubility17Choose the best answerIf the molar solubility of Mg(OH)₂ is x, its Ksp is:A4x³B108x⁵C27x⁴D9x³ Like 0 Discuss 0Share
Chemical EquilibriumEffect of Pressure on Equilibrium18Choose the best answerIn which equilibrium does increasing pressure increase the equilibrium yield of products?AH₂(g) + I₂(g) ⇌ 2HI(g)BH₂O(g) + CO(g) ⇌ CO₂(g) + H₂(g)CH₂O(g) + C(s) ⇌ CO(g) + H₂(g)DCO(g) + 3H₂(g) ⇌ CH₄(g) + H₂O(g) Like 0 Discuss 0Share
Chemical EquilibriumActive Mass19Choose the best answerThe active mass of 64 g of HI present in a 2.0 dm³ flask is approximately:A2.0 mol dm⁻³B1.0 mol dm⁻³C0.50 mol dm⁻³D0.25 mol dm⁻³ Like 0 Discuss 0Share
Chemical EquilibriumEffect of Temperature on Equilibrium20Choose the best answerFor A + B ⇌ C + D + heat, the forward reaction is favoured by:AAdding CBAdding DCDecreasing temperatureDIncreasing temperature Like 0 Discuss 0Share