When a substituent moves from the equatorial to the axial position in a chair-chair interconversion, its A value corresponds to its ∆G° value. A values are always positive numbers because most substituents prefer to be in the equatorial position. Calculate ∆G° and K_eq for the chair-chair interconversions below using the given A value.

• A. ∆G° = 5.7⨉10^-2 kcal/molK_eq = 1.7
• B. ∆G° = 1.7 kcal/molK_eq = 5.7⨉10^-2
• C. ∆G° = 8.5 kcal/molK_eq = 7.5⨉10^-2
• D. ∆G° = 1.7 kcal/molK_eq = 0.99