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A plot of log x/m versus log p for the adsorption of a gas on a solid gives a straight line with slope equal to


(a) 1/n
(b) log k
(c) -log k
(d) n

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1 Answer

Answer: 1/n
For the adsorption of a gas on a solid $\frac{x}{m} = kp^{1/n}$ This equation is known as Freundlich Adsorption Isotherm.
On taking logarithm on both sides, we obtain,
$\Longrightarrow log \frac{x}{m} = log k + \frac{1}{n} log p$
$\therefore$ plot of log x/m versus log p will be linear with slope = 1/n .
answered Mar 17, 2014 by mosymeow_1
edited Mar 17, 2014 by balaji.thirumalai
 

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