Question

A straight line will be obtained according to Freundlich adsorption isotherm if we plot?

• A. $log\left(x/m\right)$ vs $\log P$
• B. $x/m$ vs $P$
• C. $m/x$ vs $1/P$
• D. $x/m$ vs $1/P$

Answer 1

Answer: (A)

$log\left(x/m\right)$ vs $\log P$

For this adsorption isotherm,

$\frac{x}{m}=K{P}^{\frac{1}{n}}$

Taking $\log$,

$\log \frac{x}{m}=\log K+\frac{1}{n}\log P$

Hence, straight line will be obtained if $\log \frac{x}{m}$ vs $\log P$ is plotted.