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  4. For Freundlich isotherm a graph of log (x/m) is plotted against log P. The slope of the line and its y-axis intercept, respectively corresponds to

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Q. For Freundlich isotherm a graph of log $\frac {x}{m}$ is plotted against $log\, P$. The slope of the line and its y-axis intercept, respectively corresponds to

KCETKCET 2014Surface Chemistry

Solution:

According to Freundlich adsorption isotherm

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

Taking log both side

$\log \frac{x}{m}=\frac{1}{n} \log p+\log k$

image

Graph between $\log \frac{x}{-}$ against $\log p$