question_answer

A plot of \[\log \,m/x\] versus \[\log \,\,p\] for the adsorption of a gas on a solid gives a straight line with slope equal to:         [AIPMT (S) 2006]

A) - log k

B) n         

C) \[\frac{1}{n}\]

D) log k

Correct Answer: C

Solution :

[c] The empirical relation \[\frac{x}{m}=k\,{{p}^{\frac{1}{n}}},\]put forward by Freundlich is known as Freundlich adsorption isotherm. Taking logarithm

\[\log \frac{x}{m}=\log \,k+\frac{1}{n}\,\log \,\,p\]

If a following curve is plotted