# According to Freundlich adsorption isotherm, which of the following is correct ? Option 1) Option 2) Option 3) Option 4) All the above are correct for different ranges of pressure

As we learnt in

Freundlich gave an empirical relationship between the quantity of gas adsorbed by unit mass of solid adsorbent and pressure at a particular temperature

- wherein

$\frac{x}{m}= K.p^{1/n}$ (n>1)

Freundlich adsorption isotherm is represented as

$\frac{x}{m}= kp^{1/n}$

At high pressure $\frac{1}{n} = 0$

$\Rightarrow \frac{x}{m} \propto P^{0}$

At low pressure $\frac{1}{n}=1$

$\Rightarrow \frac{x}{m}\propto P$

Option 1)

This option is incorrect.

Option 2)

This option is incorrect.

Option 3)

This option is incorrect.

Option 4)

All the above are correct for different ranges of pressure

This option is correct.

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