Question

Write down Gibbs energy equation and indicate which one is change in enthalpy​

Answer 1

Its symbol is ΔfG˚. All elements in their standard states (diatomic oxygen gas, graphite, etc.) have standard Gibbs free energy change of formation equal to zero, as there is no change involved. ΔfG = ΔfG˚ + RT ln Qf, where Qf is the reaction quotient.