With a photochemical process, the color timer adjusts the color of the film via printer lights for greater consistency in the film's colors.

Therefore, the rate of oxygen diffusion increases and free radical fragments formed in primary photochemical processes are more readily separated.

Photoexcitation is the first step in a photochemical process where the reactant is elevated to a state of higher energy, an excited state.

Most photochemical transformations occur through a series of simple steps known as primary photochemical processes.

This low quantum yield means that other photochemical processes are occurring.

The reaction is followed by a photochemical process creating singlet oxygen to obtain the end product.

The photochemical processes involved are complex but well understood.

The cleansing mechanism of UV is a photochemical process.

The transformation of excitation energy into harmless heat occurs via a photochemical process called internal conversion.

They are usually highly noxious, and can be harmful to the photochemical processes that are important to our atmosphere.