A Substance undergoes first order decomposition. The decomposition follows two parallel first order reactions as The percentage distribution of $B$ and $C$ are

Question

A Substance undergoes first order decomposition. The decomposition follows two parallel first order reactions as The percentage distribution of $B$ and $C$ are, $75 \% \mathrm{~B}$ and $25 \% \mathrm{C}$, $80 \% \mathrm{~B}$ and $20 \% \mathrm{C}$, $60 \% \mathrm{~B}$ and $40 \% \mathrm{C}$, $76.83 \% \mathrm{~B}$ and $23.17 \% \mathrm{C}$

MARKS App · Accepted Answer

$\begin{aligned} & \text { % distribution of } \mathrm{B}=\frac{k_1}{k_1+k_2} \times 100 \ & =\frac{1.26 \times 10^{-4}}{1.26 \times 10^{-4}+3.8 \times 10^{-4}} \times 100 \ & \mathrm{~B} \%=76.83 \% \ & \text { % Distribution of } \mathrm{C}=\frac{k_2}{k_1+k_2} \times 100 \ & =\frac{3.8 \times 10^{-4}}{1.26 \times 10^{-4}+3.8 \times 10^{-4}} \times 100 \ & \mathrm{C} \%=23.17 \%\end{aligned}$

Search any question & find its solution

Looking for more such questions to practice?