Suppose that, in a given reaction, the enthalpy (H) increases by 10 units, and the disorder (TS) increases by 12 units. By how many units did the Gibbs free energy change?
A)2
B)-2
C)22
D)-22

Question

Quizplus · Accepted Answer

The change in Gibbs free energy (ΔG) is given by the equation ΔG = ΔH - TΔS. Assuming the temperature (T) is in units that make TΔS directly comparable to ΔH (for simplicity, let's assume T = 1 for unit consistency), ΔG = 10 - 12 = -2 units.

Suppose That, in a Given Reaction, the Enthalpy (H) Increases