Sourav PanApril 24, 2025

What is ε (molar absorptivity) in Beer-Lambert Law?

Sourav PanApril 24, 2025

Answered

ε (molar absorptivity), also known as molar extinction coefficient, is a constant that represents how strongly a substance absorbs light at a particular wavelength. It is specific to both the substance and the wavelength of light used and is expressed in units of L·mol⁻¹·cm⁻¹.

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