In Freundlich adsorption isotherm, slope of AB line is :

1. log n with (n > 1)

2. n with (n, 0.1 to 0.5)

3. $\begin{array}{l}\log \frac{1}{\mathrm{n}}\text{\hspace{0.17em}with\hspace{0.17em}}(\mathrm{n}<1)\\ \end{array}$

4. $\frac{1}{\mathrm{n}}\text{\hspace{0.17em}with\hspace{0.17em}}\left(\frac{1}{\mathrm{n}}=0\text{\hspace{0.17em}to\hspace{0.17em}}1\right)$

Which of the following statements is incorrect regarding physisorption?

Among the following, the incorrect characteristics for physical adsorption is-