The accompanying diagram shows how the free energy, G, changes during a hypothetical reaction A(g) + B(g) → C(g) On the left are pure reactants, each at 1 atm, and on the right is the pure product, also at 1 atm.
(a) What is the significance of the minimum in the plot?
(b) What does the quantity x, shown on the right side of the diagram, represent?