Chemical equilibrium 01Chemical equilibrium #Kc86Choose the best answerA very large value of Kc shows that, at equilibrium, the reaction is:APredominantly reverseBVirtually complete in the forward directionCAt equilibrium with equal reactant and product concentrationsDUnable to proceed Like 0 Discuss 0Share
Chemical EquilibriumEquilibrium Constant Kc87Choose the best answerFor A + B ⇌ C + D, equal initial concentrations of A and B are used. At equilibrium, the concentration of C is twice that of A. The value of Kc is:A4B2C1/4D1/2 Like 0 Discuss 0Share
Chemical EquilibriumDynamic Equilibrium88Choose the best answerFor A ⇌ B, equilibrium is reached when:AA completely changes into BBExactly 50% of A changes into BCRate of A → B equals rate of B → ADOnly 10% of A changes into B Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Kc89Choose the best answerThe graph shows forward rate (Rf) and reverse rate (Rr) versus time for a reversible reaction. Which statement is correct?ABefore tₑ, Qc = KcBAt tₑ, Qc < KcCAfter tₑ, Qc = Kc and the system is at equilibriumDAfter tₑ, forward rate is greater than reverse rate Like 0 Discuss 0Share
MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Chemical Equilibrium#Common Ion Effect90Choose the best answerThe solubility of AgCl decreases by adding: (IBA MDCAT Reconduct 2024)AH₂SO₄BHFCNaClDH₂O Like 0 Discuss 0Share