Which of the following equation shows the relationship between free energy change (∆G) and the change in entropy (∆S), under constant temperature and pressure?

• A. ∆G = T∆H – ∆S
• B. ∆G = T∆H/∆S
• C. ∆G = ∆H/T∆S
• D. ∆G = ∆H – T∆S