photochemical processes

Photochemical processes involve chemical reactions triggered by light. When molecules absorb specific wavelengths of light, their energy increases, causing bonds to break or new bonds to form. This change can create new substances or alter existing ones. For example, photosynthesis in plants uses sunlight to convert carbon dioxide and water into glucose and oxygen. These processes are fundamental in natural systems and various technologies, like photodegradation of pollutants or the development of light-sensitive materials. Essentially, photochemistry describes how light energy interacts with molecules to drive chemical changes.