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Chemistry · Glossary

What is Absorption spectrum?

Definition 29.4 School Chemistry — Grades 1 to 12 · Chapter 29 — Colour and Absorbance

The absorption spectrum of a solution is the graph of the light it absorbs (its absorbance, defined in the next section) against the wavelength. The wavelength at which the absorption is largest is written λmax⁡\lambda_{\max}.

Absorption spectra of the two dyes in water, in a cell 1\, cm thick. The band shapes are drawn from a simple model; the positions of the maxima and their heights are those of the specifications of the two dyes.
Absorption spectra of the two dyes in water, in a cell 1 cm1\,\mathrm{cm} thick. The band shapes are drawn from a simple model; the positions of the maxima and their heights are those of the specifications of the two dyes.
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