SEARCH Articles Figures Tables Atomic energy 254 INDEX Bond energies 496 INDEX Chemical Reactivity Indices in Orbital Energy Representation Dual-energy index Electronic excitation energy 588 INDEX Energy Performance Index (EPI) Method Energy based sustainability index Energy consumption INDEX Energy performance index Energy performance index method Energy release rate 478 INDEX Energy savings INDEX Energy, Torsional 1388 INDEX Energy’ conservation INDEX Free energy 596 INDEX Gibbs energy INDEX Heat energy, value INDEX INDEX Gibbs free energy INDEX attractive energy INDEX energy flows INDEX energy rate density INDEX energy requirement INDEX energy surfaces, potential INDEX internal energy INDEX potential energy barrier INDEX thermal energy INDEX total potential energy INDEXES Bond dissociation energy Index excess energy dependence Linear free energy relationships INDEX Local reactivity indexes system energy National energy laboratories INDEX Photons, energy INDEX Refractive index energy dependence Strain energy 476 INDEX