Adsorption of a gas follows Freundlich adsorption isotherm. $\mathrm{x}\mathrm{ }$is the mass of the gas adsorbed on mass $\mathrm{m}$ of the adsorbent. The plot of $\log \frac{\mathrm{x}}{\mathrm{m}}$ vs  $\log \left(\mathrm{p}\right)$  is shown in the given graph. $\frac{\mathrm{x}}{\mathrm{m}}$ is proportional to,