the electrons follow radiative transition. Radiative transition occurs when electrons falls back from higher energy excited state to lower energy ground state within the molecule, then energy emitted is measured as light. Therefore, in most cases, the emitted light has a longer wavelength (lower energy) than the absorbed radiation (higher energy). Absorption of light is something that occurs at the atomic and molecular level and usually involves the energy state of particular electrons. The electrons in certain molecules are capable of moving from one energy level to another without leaving the atom or molecule.
Oct 13, 2008 · "Of greatest significance, our process occurs at low temperature and low pressure, thereby requiring far less energy than other approaches." Um, no.. The VAST BULK of the energy you spend on making hydrocarbons out of CO2 will ALWAYS be on the energy required for the reaction itself.