In the Freundlich isotherm $\frac{x}{m}=k p^{\frac{1}{n}}$ plot of $\log \frac{x}{m}$ vs $\log p$, the intercept is (where, $x$, $m$, $p$ and $k$ are mass of the gas, mass of adsorbent, pressure and constant which depend on the nature of the adsorbent, respectively)

• A
  $k$
• B
  $\log k$
• C
  $e^k$
• D
  $\ln \frac{1}{k}$