Answer to Question #101517 in Physical Chemistry for Abhishek

Question

Briefly explain the laws of photochemistry.

Answer 1

Answer: Photochemistry has two basics laws, which describe the condition and efficiency of photo absorption.

Grotthuss–Draper law:

The first law of photochemistry called as Grotthuss-Draper law.

This law states that radiation must be absorbed by the compounds in order for a photochemical reaction to happen.

Stark-Einstein law:

The second law of photochemistry called as the Stark-Einstein law.

This law states that for each photon of radiation absorbed by a chemical system, no more than one molecule is activated for a photochemical reaction.