A) \[\frac{x}{m}\propto {{p}^{0}}\]
B) \[\frac{x}{m}\propto p\]
C) \[\frac{x}{m}\propto \frac{1}{p}\]
D) \[\frac{x}{m}\propto {{p}^{1/n}}\]
Correct Answer: D
Solution :
Freundlich proposed following empirical equation\[\frac{w}{m}k{{p}^{1/n}}\]or \[\log \frac{w}{m}=\log k+\frac{1}{n}\log p\]where w is the mass of gas adsorbed on a mass m of adsorbent at a pressure p, k and n are constant, which are depend on nature of the gas and the adsorbent and on temperature. Note: Freundlich isotherm is not applicable at high pressure.
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