Does Absorptivity Have A Unit?

Does Absorptivity Have A Unit? Does absorptivity have a unit? Thus, given that absorbance is unitless, the units of molar absorptivity are L mol– 1 cm– 1. However, since the units of molar absorptivity is always the above, it is customarily reported without units. What is absorptivity unit? Molar absorptivity is arbitrarily defined for thickness