Question

State and Derive Beer Lambert Law

Answer 1

Answer:

The Beer-Lambert law states that:

for a given material sample path length and concentration of the sample are directly proportional to the absorbance of the light.

The Beer-Lambert law is expressed as:

A = εLc

where,

A is the amount of light absorbed for a particular wavelength by the sample

ε is the molar extinction coefficient

L is the distance covered by the light through the solution

c is the concentration of the absorbing species

Following is an equation to solve for molar extinction coefficient:

ϵ=ALc

But Beer-Lambert law is a combination of two different laws: Beer’s law and Lambert law.