Question

Which of the following equation gives the relationship between ∆G֯ and Keq?

(a) ∆G֯ = -RT ln Keq

(b) ∆G֯ = ln Keq

(c) ∆G = ∆G֯ (-RT Keq)

(d) ∆G = -RT ln Keq

The question was asked at a job interview.

My query is from Bioenergetics topic in portion Biomolecules and Catalysis of Life Sciences

Answer 1

Correct option is (a) ∆G֯ = -RT ln Keq

Explanation: Equation ∆G֯ = -RT ln Keqis correct as Keq is the equilibrium constant, R is the gas constant and T is the absolute temperature. This equation shows the simple prediction about the rate of reaction as if it proceeds forward, reverse or is at equilibrium.