Gibbs Free Energy and Thermodynamics

These flashcards cover important concepts related to Gibbs free energy, spontaneous processes, equilibrium conditions, and thermodynamics, aiding in the understanding of the subject matter.

Equilibrium Condition

A state where the free energy change (ΔG) is equal to zero, indicating no net change in the system.

ΔG < 0

Indicates that a reaction is spontaneous under the given conditions.

ΔG = 0

Indicates that a system is at equilibrium; there is no net change in the concentrations of reactants and products.

ΔG > 0

Indicates that a reaction is non-spontaneous in the forward direction; energy must be supplied to proceed.

Standard Free Energy Change (ΔG°)

The change in free energy under standard conditions (1 bar, 25°C) for a given reaction.

When ΔG is negative… 

it indicates that a reaction is spontaneous in the forward direction.

When ΔG is positive… 

it indicates that a reaction is non-spontaneous in the foward direction