Consider this rxn which has a Δ G ° = +0.4 kJ\mol.
A + B ↔ C + D
1 M A, 1 M B, 0.1 M C and 0.1 M D are added to a container at room temperature. Which of the following statements is true?
A) The reaction will proceed in the forward direction to reach equilibrium.
B) The reaction will proceed in the backward direction to reach equilibrium.
C) The reaction will not proceed in either direction; it is already at equilibrium.
D) Cannot be determined from the information provided.

Question

Quizplus · Accepted Answer

Given the positive ΔG° value, the reaction is not spontaneously favorable in the forward direction under standard conditions. However, the reaction quotient Q (which is [C][D]/[A][B] in this case) is lower than the equilibrium constant K (since ΔG° is positive, K < 1), indicating the reaction will proceed in the forward direction to reach equilibrium.

Consider This Rxn Which Has a Δ G ° =