(a)
Interpretation: For the given mixtures of A and B forming AB3, a balanced equation needs to be interpreted.
Concept Introduction: A
(b)
Interpretation: From the given mixtures, the mixture at equilibrium needs to be identified if the value of K is 8.0.
Concept Introduction: For any reaction, the reaction quotient can be calculated by taking the ratio of the concentration of the product to the reactant. For a reaction at equilibrium, the reaction quotient is equal to the equilibrium constant.
(c)
Interpretation: The three mixtures need to be ranked from highest to lowest change in Gibbs free energy.
Concept Introduction: For a spontaneous reaction, the sign of change in Gibbs free energy is negative. If the value of Q is less than K, the reaction moves in the right direction to increase the concentration of the product. Also, if the value of Q is greater than K, the reaction moves in the left direction to increase the concentration of reactants.
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Chemistry: The Molecular Nature of Matter and Change
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