Free energy is the one

Define: (i) Gibbs free energy (ii) the standard free energy of formation of a substance (iii) the standard free energy change in a chemical reaction.

Gibbs free energy is defined as ____

Gibb's free energy G is defined as

Free energy is released in cyclic photophosphorylation.

For one mole of a pure substance free energy is identical with

Explain free energy.Discuss the effect of temperature on free energy.