Conversation so far:
what are the units of delta g reaction
Chemists normally measure energy, both enthalpy and Gibbs free energy, in kilojoules per mole but measure entropy in joules per kelvin per mole.
what factors can affect delta g
There are two factors which can affect delta G, enthalpy and entropy.
what is enthalpy
Enthalpy is a thermodynamic quantity equivalent to the total heat content of a system.
what is entropy
Entropy is a thermodynamic quantity representing the unavailability of a system's thermal energy for conversion into mechanical work, often interpreted as the degree of disorder or randomness in the system

Question: who developed the energy
Self-contained rewrite: who developed the gibbs free energy