Surface Chemistry

Emulsion is a colloidal solution of liquid in liquid.

$R_{f}value=\frac{Distancemovedbysubstancefrombaseline}{Distancemovedbythesolventfrombaseline}=\frac{2}{5}=0.4=4.0*10^{-1}$

Freundlich adsorption Isotherm

$\left(\frac{x}{m}\right)=k{\left(P\right)}^{\frac{1}{n}}$

At moderate pressure ; $\frac{x}{m}$ $\frac{}{}$ varies non-linearly with P.

So, $x=\frac{1}{n}$

Freundlich adsorption isotherm

$\frac{x}{m}=k{p}^{1/n}$

$log\frac{x}{m}=\frac{1}{n}logp+logk$

Comparing with y = mx + C

so, slope of given graph is $\frac{1}{n}$ $\frac{}{}$ whose value varies from 0 to 1.

$FeC{l}_3\underset{}{\overset{hydrolysis}{\to }}Fe{\left(OH\right)}_3\downarrow \underset{Adsorption}{\overset{F{e}^{3+}}{\to }}Fe{\left(OH\right)}_3|F{e}^{3+}\left(colloidalparticle\right)$

Volume of H₂ adsorbed = $\frac{nRT}{P}=\frac{2*0.083*300}{2*1}=24.9lit=24900ml$  

Therefore volume of gas adsorbed per gram of the adsorbent =  $\frac{24900}{2.5}=9960$  

Data is not sufficient but official answer is (D)

Potential difference between fixed layer and mobile layer of lyophobic colloid is called zeta potential  or electro kinetic potential.

This potential difference is related to charge on the surface of colloidal particles.

Data is not sufficient but official answer is (D)

Partition