7. For the energy diagrams shown below, which reaction is the most exothermic. Ren 20 20 Reaction Progress Ren 20 Reaction Progress Rxn I 20 Reaction Progress (a) Ren I (b) Rn (c) Rxn I (d) none of the reactions are exothermic (e) all reactions are equally eKothermic Potential Energy Potential Energy Potential Energy

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Photochemistry

Photochemistry is the part of chemistry that studies the various mechanisms of reactions that are triggered by the presence of light energy. It also helps to study the changes involved in a molecule that can undergo the absorption of radiation.