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  4. According to Freundlich adsorption isotherm at high pressure, the value of (x/m) is

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Q. According to Freundlich adsorption isotherm at high pressure, the value of $ \frac{x}{m} $ is

Uttarkhand PMTUttarkhand PMT 2011

Solution:

At high pressure, the extent of adsorption $\left(\frac{x}{m}\right)$ becomes constant as the adsorbent surface is saturated with the adsorbate.
Hence, $\frac{x}{m}$ becomes independent of pressure.
Mathematically, $\frac{x}{m}=k p^{\circ}$.