chemistry-class-12-unit-05-chapter-05-surface-chemistry-l-5-6-1usef0iypy4

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Surface chemistry</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<ul>
<li>
<p>logA Vs $E^{cat}_a$</p>
</li>
<li>
<p>$k^{cat}$=$A^{cat}$ $e^-{\frac{E^{cat}_a}{RT}}$</p>
</li>
<li>
<p>$k^{uncat}=A^{uncat}$ $e^-{\frac{E^{uncat}_a}{RT}}$</p>
</li>
<li>
<p>Zeolite catalysts - $SiO^{4-}_4$, $AlO^{5-}_4$</p>
</li>
<li>
<p>Lewis and bronsted</p>
</li>
<li>
<p>Enzyme catalysis</p>
</li>
</ul>
</div>
<div style='float: right; width:0%;'>
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<hr>
<footer style="font-size:18px;"> <span style="color:blue">Surface chemistry</span> $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Surface chemistry</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<ul>
<li><strong>What is common amongst</strong></li>
</ul>
<ul>
<li>
<p>Smoke</p>
</li>
<li>
<p>Homogenized milk</p>
</li>
<li>
<p>Shampoo
COLLOIDS/EMULSIONS</p>
</li>
</ul>
</div>
<div style='float: right; width:0%;'>
<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-05-chapter-05-surface-chemistry-l-5_6-1usef0iypy4-40.jpg"></p>
</div>
</main>
<hr>
<footer style="font-size:18px;"> <span style="color:blue">Surface chemistry</span> $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<p><strong>What is a colloid ?</strong></p>
<p>Thomas Graham 1851 - diffusion of gases</p>
</div>
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<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ <span style="color:blue">Colloids</span> $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<p>It has two components</p>
<p><strong>1.)</strong> <strong>Dispersed phase</strong></p>
<p>continuous / dispersion phase</p>
<p>Emulsifying agent</p>
<p><strong>2.)</strong> Dispersion medium</p>
</div>
<div style='float: right; width:0%;'>
<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-05-chapter-05-surface-chemistry-l-5_6-1usef0iypy4-02.jpg"></p>
</div>
</main>
<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ <span style="color:blue">Colloids</span> $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Types of colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<table>
<thead>
<tr>
<th>Dispersed phase</th>
<th>Dispersion medium</th>
<th>Name</th>
<th>Examples</th>
</tr>
</thead>
<tbody>
<tr>
<td>Liquid</td>
<td>Gas</td>
<td>Liquid aerosol</td>
<td>Fog</td>
</tr>
<tr>
<td>Solid</td>
<td>Gas</td>
<td>Solid aerosol</td>
<td>Smoke</td>
</tr>
<tr>
<td>Gas</td>
<td>Liquid</td>
<td>Foam</td>
<td>Soda</td>
</tr>
<tr>
<td>Liquid</td>
<td>Liquid</td>
<td>Emulsion</td>
<td>Milk</td>
</tr>
<tr>
<td>Solid</td>
<td>Liquid</td>
<td>Sol</td>
<td>Toothpaste</td>
</tr>
<tr>
<td>Gas</td>
<td>Solid</td>
<td>Solid foam</td>
<td>Pumice</td>
</tr>
<tr>
<td>Liquid</td>
<td>Solid</td>
<td>Solid emulsion</td>
<td>Pearl</td>
</tr>
<tr>
<td>Solid</td>
<td>Solid</td>
<td>Solid sol</td>
<td>Ruby glass</td>
</tr>
</tbody>
</table>
</div>
</main>
<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ <span style="color:blue">Types of colloids</span> $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Many processes involve colloidal phenomena</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<ul>
<li>
<p>Soil conditioning</p>
</li>
<li>
<p>Food processing</p>
</li>
<li>
<p>Sugar refining</p>
</li>
<li>
<p>Lubrication wetting</p>
</li>
<li>
<p>Oil - well drilling</p>
</li>
</ul>
</div>
<div style='float: right; width:0%;'>
<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-05-chapter-05-surface-chemistry-l-5_6-1usef0iypy4-194.jpg"></p>
</div>
</main>
<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ <span style="color:blue">Many processes involve colloidal phenomena</span> $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Differences between colloids and classical chemistry</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<table>
<thead>
<tr>
<th>Classical Chemistry</th>
<th>Colloids</th>
</tr>
</thead>
<tbody>
<tr>
<td>Limited size particles</td>
<td>10000-$10^8 $</td>
</tr>
<tr>
<td>Freezing point lowering</td>
<td>FP lowering undetectable</td>
</tr>
<tr>
<td>Solutions clear</td>
<td>Solutions turbid</td>
</tr>
<tr>
<td>Particle diffusion seen</td>
<td>Diffusion undetectable</td>
</tr>
<tr>
<td>Ions with small charge</td>
<td>Highly charged</td>
</tr>
<tr>
<td>Molecules “spherical”</td>
<td>Shape dissymmetry</td>
</tr>
<tr>
<td>Limited flexibility</td>
<td>Flexible</td>
</tr>
</tbody>
</table>
</div>
<div style='float: right; width:0%;'>
<p><img alt="image" src="/subject-images/iitpal/image/chemistry-class-12-unit-05-chapter-05-surface-chemistry-l-5_6-1usef0iypy4-219.jpg"></p>
</div>
</main>
<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ <span style="color:blue">Differences between colloids and classical chemistry</span> $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Properties of colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<ul>
<li>
<p><strong>Tyndall effect -</strong> colloidal optical property</p>
</li>
<li>
<p><strong>Zsigmondy 1909 -</strong> ultramicroscopy</p>
</li>
</ul>
</div>
<div style='float: right; width:0%;'>
<img src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/bd667cad-0a2a-4bf8-804c-b1936bbb3c00/public" width="90%">

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</main>
<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ <span style="color:blue">Properties of colloids</span> $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Properties of colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<ul>
<li><strong>Kinetic</strong></li>
</ul>
<ul>
<li>
<p>Diffusion</p>
</li>
<li>
<p>Brownian</p>
</li>
<li>
<p>Dialysis</p>
</li>
<li>
<p>Electrokinetic</p>
</li>
</ul>
</div>
<div style='float: right; width:0%;'>
<img src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/1ba445f5-d627-4400-803b-25d8855b4500/public" width="90%">

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</main>
<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ <span style="color:blue">Properties of colloids</span> $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Properties of colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<ul>
<li><strong>Electrokinetic</strong></li>
</ul>
<ul>
<li>
<p>Electrophoresis</p>
</li>
<li>
<p>Electro - osmosis</p>
</li>
<li>
<p>Streaming potential</p>
</li>
</ul>
</div>
<div style='float: justify-content: center; width:0%;'>
<img src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/a1b84a58-067c-4c58-e561-a2eccd4ac700/public" width="90%">

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<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ <span style="color:blue">Properties of colloids</span> $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Dialysis - Thomes Gochan</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<p>Kidney dialysis to semi permeable membrane</p>
<p>[Urea/creatines $\rightarrow$ urine]</p>
</div>
<div style='float: right; width:0%;'>
<img src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/5049a0ec-a07b-4842-9478-db2cb6b33900/public" width="90%">

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<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ <span style="color:blue">Dialysis - Thomes Gochan</span> $\rightarrow$ Preparation of colloids </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Preparation of colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:50%;font-size:22px;text-align:left'>
<ul>
<li>
<p>Condansation (Bottom - up)</p>
</li>
<li>
<p>Dispersion(Top - down)</p>
</li>
</ul>
<p>(1) $FeCl_3$ $H_2O$ $100^oC$ $Fe(OH)_3$</p>
<p>(2) $AuCl_4 + 4 Au ~ $</p>
<p>$Au^0$</p>
</div>
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<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ <span style="color:blue">Preparation of colloids</span> </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Surface chemistry Lecture-5</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Preparation of colloids</B></primary></p>
<hr>
<main>
<div style='float: left; width:50%;font-size:22px;text-align:left'>
<p>$AgI \left[Ag^+\right]=\left[I\right]=10^{-8}$</p>
<p>$KI+AgNO_3 \rightarrow AgI$</p>
<p>$AgNO_3$</p>
</div>
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<hr>
<footer style="font-size:18px;"> Surface chemistry $\rightarrow$ Colloids $\rightarrow$ Types of colloids $\rightarrow$ Many processes involve colloidal phenomena $\rightarrow$ Common colloids $\rightarrow$ Differences between colloids and classical chemistry $\rightarrow$ Properties of colloids $\rightarrow$ Dialysis - Thomes Gochan $\rightarrow$ <span style="color:blue">Preparation of colloids</span> </footer>