For the reaction $\mathrm{A} \rightarrow$ products. The concentration of A at 10 minutes is _______ $\times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$ (nearest integer). The reaction was started with $2.5 \mathrm{~mol} \mathrm{~L}^{-1}$ of A.

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Aicharya · Accepted Answer

$\begin{aligned} & \mathrm{t}_{1 / 2} \propto[\mathrm{A}]_0 \Rightarrow \text { Order }=\text { zero } \ & \mathrm{t}_{1 / 2}=\frac{\mathrm{A}_0}{2 \mathrm{~K}} \Rightarrow \text { Slope }=\frac{1}{2 \mathrm{~K}}=76.92 \ & \mathrm{~K}=\frac{1}{2 \times 76.92} \ & {[\mathrm{A}]_{10}=-\mathrm{Kt}+\mathrm{A}_0=-\frac{1}{2 \times 76.92} \times 10+2.5=2.435} \ & =2435 \times 10^{-3} \mathrm{~mol} / \mathrm{L} \end{aligned}$

For the reaction \(\mathrm{A} \rightarrow\) products. The concentration of A at 10 minutes is _______…

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