# Freundlich equation

## Overview

The Freundlich Adsorption Isotherm is an adsorption isotherm, which is a curve relating the concentration of a solute on the surface of an adsorbent, to the concentration of the solute in the liquid with which it is in contact.

The Freundlich Adsorption Isotherm is mathematically expressed as

${\displaystyle \ x/m=Kp^{1/n}}$

or

${\displaystyle \ x/m=Kc^{1/n}}$

where