# Gibbs Free Energy with Equilibrium Constant ('K_eq')

Not Reviewed
Delta G =
Tags:
Rating
Copied from
ID
ekskekel.Gibbs Free Energy with Equilibrium Constant ('K_eq')
UUID
5eb0d9d5-1eaa-11e6-9770-bc764e2038f2

The Gibbs Free Energy of reaction formula, Delta G=-R * T * ln (K_a), calculates the process-initiating work available to trigger a reaction.  As such it is defined in units of energy / amount of substance (J/mol).

Delta G=-R * T * ln (K_a)

• R is the ideal gas constant (8.314 J/mol*K)
• T is temperature (Kelvin)
• K_a is the acid equilibrium constant (unit-less)
• ΔG is the Gibbs free energy (J/mol)