👉 In chemistry, a photoisomerization reaction is an energy transfer process that involves altering one molecule in a system while leaving another unchanged. This process can be used to synthesize new compounds from simpler ones or to study the properties of molecules in isolation. Example: 1. Photo-isomerization of benzene (C6H6) with ultraviolet light: When UV light is incident on benzene, it breaks the carbon-carbon double bond and releases a photon, which causes a change in
