The graph drawn between $\log \left(\frac{x}{m}\right)$ and $\log (p)$ is shown below with intercept $OA = 0.3010$. What is the value of $\left(\frac{x}{m}\right)$ at a pressure of $0.3 \ atm$ ? (Given: $\log 2 = 0.3010, \log 3 = 0.477$)

Which of the following is used for the adsorption of moisture?

$0.2 \ g$ of fine animal charcoal is mixed with half litre of acetic acid solution and shaken for $30 \ minutes$. What happens to the concentration of the acetic acid solution?

Which among the following gases is least adsorbed on a solid at similar conditions of temperature and pressure?

Under what conditions does the rate of physisorption increase?

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)