Question

In the mathematical relation of Freundlich adsorption isotherm, the value of $\frac{1}{n}$ is $0\le \frac{1}{n}\le 1$.

• A. True
• B. False

Answer 1

The correct option is A True

Freundlich isotherm explains the behaviour of adsorption in an approximate manner. The factor $\frac{1}{n}$ can have values between 0 and 1 (probable range 0.1 to 0.5).

When $\frac{1}{n}$ = 0, $\frac{x}{m}$ = constant, the adsorption is independent of pressure.
When $\frac{1}{n}$= 1, $\frac{x}{m}$= kp, i.e. $\frac{x}{m}\propto p$, the adsorption varies directly with pressure.