For the non-dissociative adsorption of a gas on solid,
(i) the Freundlich isotherm is given by \(\theta = k\,p^{1/n}\) (where \(\theta\) is surface coverage, \(p\) pressure, \(k,n\) empirical constants); and
(ii) the BET isotherm is given by \(\displaystyle \frac{p}{p^{\ast}-p}=\frac{\theta}{c}+\theta(c-1)\left(\frac{p}{p^{\ast}}\right)\)
(where \(p^{\ast}\) and \(c\) are empirical constants, and \(p<p^{\ast}\)).
The correct statement(s) is(are)