chemistry-class-12-unit-04-chapter-03-chemical-kinetics-l-3-16-4nd7ba9ojqw

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Chemical kinetics Lecture-3</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Example of homogeneous reaction</B></primary></p>
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<ul>
<li><strong>Homogeneous reaction</strong></li>
</ul>
<p>$ClO^-_ {(aq)} + Br^-_ {(aq)} \longrightarrow BrO^-_ {(aq)} + Cl^-_{(aq)}$</p>
<p>$\uparrow$</p>
<p><strong>Hypochlorite</strong></p>
<ul>
<li>Study the kineties of mis reaction at a fixed temperature of $25^{\circ} \mathrm{C}$ or 298k</li>
</ul>
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<hr>
<footer style="font-size:18px;"> <span style="color:blue">Example of homogeneous reaction</span> $\rightarrow$ Kinetics reaction profile $\rightarrow$ Some features of the plot $\rightarrow$ Question $\rightarrow$ Kinetic reaction profile $\rightarrow$ Rate of reaction $\rightarrow$ General reaction </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Chemical kinetics Lecture-3</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Kinetics reaction profile</B></primary></p>
<hr>
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<div style='float: left; width:65%;font-size:22px;text-align:left'>
<ul>
<li>The circles seen on the plot are experimental data points</li>
</ul>
<p>$\begin{array}{ccc}
t _1 & t _2 & t _3 & t _4 & t _5 & \text{sec} \\
[Br^-] & [Br^-] & \downarrow & \downarrow & \downarrow & {} \\
[ClO^-] & [ClO^-] & {} & {} & {} & \\
[BrO^-] & [BrO^-] & {} & {} &  {} &  \\
[Cl^-] & [Cl^-] & {} & {} & {} &  \\
\end{array}$</p>
</div>
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<hr>
<footer style="font-size:18px;"> Example of homogeneous reaction $\rightarrow$ <span style="color:blue">Kinetics reaction profile</span> $\rightarrow$ Some features of the plot $\rightarrow$ Question $\rightarrow$ Kinetic reaction profile $\rightarrow$ Rate of reaction $\rightarrow$ General reaction </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Chemical kinetics Lecture-3</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Kinetics reaction profile</B></primary></p>
<hr>
<main>
<div style='float: left; width:65%;font-size:22px;text-align:left'>
<ul>
<li>
<p>$0 \rightarrow$ time zero</p>
</li>
<li>
<p>Just at or before the start of your reaction</p>
</li>
</ul>
<p>$0 \quad t_1 \quad t_2 \quad t_3 \quad t_4 \quad t_5$</p>
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</div>
</main>
<hr>
<footer style="font-size:18px;"> Example of homogeneous reaction $\rightarrow$ <span style="color:blue">Kinetics reaction profile</span> $\rightarrow$ Some features of the plot $\rightarrow$ Question $\rightarrow$ Kinetic reaction profile $\rightarrow$ Rate of reaction $\rightarrow$ General reaction </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Chemical kinetics Lecture-3</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Some features of the plot</B></primary></p>
<hr>
<main>
<div style='float: left; width:65%;font-size:22px;text-align:left'>
<ul>
<li>
<p>Concentrations of the reactants, that are, $ClO^-$and $Br^-$ decrease win increase in time</p>
</li>
<li>
<p>Concentrations of the product, that are, $BrO^-$ and $Cl^-$ increase with increase in time</p>
</li>
</ul>
</div>
<div style='float: right; width:35%;'>
<p><img alt="alt text" src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/7ad59089-d894-417b-6d0e-5f3b11d12100/public"></p>


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</main>
<hr>
<footer style="font-size:18px;"> Example of homogeneous reaction $\rightarrow$ Kinetics reaction profile $\rightarrow$ <span style="color:blue">Some features of the plot</span> $\rightarrow$ Question $\rightarrow$ Kinetic reaction profile $\rightarrow$ Rate of reaction $\rightarrow$ General reaction </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Chemical kinetics Lecture-3</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Some features of the plot</B></primary></p>
<hr>
<main>
<div style='float: left; width:65%;font-size:22px;text-align:left'>
<ul>
<li>At time zero, there was no product present is</li>
</ul>
<p>$[BrO^-]_0 =[Cl^-]_0 = 0$</p>
<ul>
<li>At time zero, the concentration of $ClO^-$is greater than the concentration of $Br^-$</li>
</ul>
<p>Hence: $[ClO^-]_0 > [Br^-]_0$</p>
</div>
<div style='float: right; width:35%;'>
<p><img alt="alt text" src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/128882e7-e919-494d-2bd4-a6e5b54a7c00/public"></p>


</div>
</main>
<hr>
<footer style="font-size:18px;"> Example of homogeneous reaction $\rightarrow$ Kinetics reaction profile $\rightarrow$ <span style="color:blue">Some features of the plot</span> $\rightarrow$ Question $\rightarrow$ Kinetic reaction profile $\rightarrow$ Rate of reaction $\rightarrow$ General reaction </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Chemical kinetics Lecture-3</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Kinetic reaction profile</B></primary></p>
<hr>
<main>
<div style='float: left; width:65%;font-size:22px;text-align:left'>
<ul>
<li>
<p>Rate of disappearance of $[ClO^-]$</p>
</li>
<li>
<p>$=-\frac{d[ClO^-]}{d t} \equiv-\frac{\Delta[ClO^-]}{\Delta t}$</p>
</li>
<li>
<p>$ \frac{\Delta [ClO^-]}{\Delta t} = \frac{c_3-c_1}{t_3-t_1}=\frac{-v e}{+ v e}=-$</p>
</li>
<li>
<p>$ c_3<c_1 ; \quad c_3-c_1 $ is a negative quantity</p>
</li>
<li>
<p>$ t_3>t_1 ; \quad t_3-t_1 $ is a positive quantity</p>
</li>
</ul>
</div>
<div style='float: right; width:35%;'>
<p><img alt="alt text" src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/bf3e5a35-10de-4f2b-f5e6-a3ae9c5df000/public"></p>


</div>
</main>
<hr>
<footer style="font-size:18px;"> Example of homogeneous reaction $\rightarrow$ Kinetics reaction profile $\rightarrow$ Some features of the plot $\rightarrow$ Question $\rightarrow$ <span style="color:blue">Kinetic reaction profile</span> $\rightarrow$ Rate of reaction $\rightarrow$ General reaction </footer>

<p><Success style="float:center;text-align:center;font-size:28px;"> <B>Chemical kinetics Lecture-3</B></Success></p>
<p><primary style="float:center;text-align:center;font-size:24px;"> <B>Rate of reaction</B></primary></p>
<hr>
<main>
<div style='float: left; width:100%;font-size:22px;text-align:left'>
<div style='float: left; width:65%;font-size:26px;text-align:left'>
<ul>
<li>
<p>Rate of disappearance of reactant is having a -ve sign before the expression</p>
</li>
<li>
<p>$-\frac{\Delta [R]}{\Delta t} \quad$ R $\rightarrow$ Reactant</p>
</li>
<li>
<p>Rate of disappearance of reactant</p>
</li>
<li>
<p>$=-\frac{\Delta[ClO^-]}{\Delta t}=-\frac{\Delta[Br^-]}{\Delta t}$</p>
</li>
<li>
<p>Rate of appearance of products</p>
</li>
<li>
<p>$=\frac{\Delta [BrO^-]}{\Delta t}=\frac{\Delta [Cl^-]}{\Delta t}$</p>
</li>
</ul>
</div>
<div style='float: right; width:35%;'>
<p><img alt="alt text" src="https://imagedelivery.net/YfdZ0yYuJi8R0IouXWrMsA/bf3e5a35-10de-4f2b-f5e6-a3ae9c5df000/public"></p>



</div>
</main>
<hr>
<footer style="font-size:18px;"> Example of homogeneous reaction $\rightarrow$ Kinetics reaction profile $\rightarrow$ Some features of the plot $\rightarrow$ Question $\rightarrow$ Kinetic reaction profile $\rightarrow$ <span style="color:blue">Rate of reaction</span> $\rightarrow$ General reaction </footer>