18. Surface chemistry question bank (Chemistry)

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

Plot of $\log \left( \frac{x}{m} \right)$ against $\log P$ is a straight line inclined at an angle of $45^{\circ}$. When the pressure is $0.5 \ atm$ and Freundlich parameter $(K)$ is $10$,then the amount of solute adsorbed per gram of adsorbent is .......... $g$ $(\log 5 = 0.699)$.