In Freundlich adsorption isotherm,the value of $1/n$ is

$0.2 \ g$ 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?

Assertion : The enthalpy of physisorption is greater than chemisorption.
Reason : Molecules of adsorbate and adsorbent are held by van der Waal's forces in physisorption and by chemical bonds in chemisorption.

Freshly prepared precipitate of $Fe(OH)_3$ is peptized by adding a solution of $FeCl_3$. The charge on the colloidal particles is due to the adsorption of ........

The adsorption of a gas on the surface of a solid is generally an exothermic process because ......

The following graph is obtained for physisorption of a gas as a function of pressure at different temperatures. The correct order of the temperatures is: