For an elementary chemical reaction, ${A_2} \underset{{{k_{ - 1}}}}{\overset{{{k_1}}}{\longleftrightarrow}} 2A$ the expression for $\frac{{d\left[ A \right]}}{{dt}}$ is
For an elementary chemical reaction, ${A_2} \underset{{{k_{ - 1}}}}{\overset{{{k_1}}}{\longleftrightarrow}} 2A$ the expression for $\frac{{d\left[ A \right]}}{{dt}}$ is
- [JEE MAIN 2019]
- A
${k_1}\left[ {{A_2}} \right] - {k_{ - 1}}{\left[ A \right]^2}$
- B
$2{k_1}\left[ {{A_2}} \right] - {k_{ - 1}}{\left[ A \right]^2}$
- C
${k_1}\left[ {{A_2}} \right] + {k_{ - 1}}{\left[ A \right]^2}$
- D
$2{k_1}\left[ {{A_2}} \right] - {2k_{ - 1}}{\left[ A \right]^2}$
Similar Questions
Molecularity of reaction of inversion of sugar is
Molecularity of reaction of inversion of sugar is
The experimental data for decomposition of $N _{2} O _{5}$
$\left[2 N _{2} O _{5} \rightarrow 4 NO _{2}+ O _{2}\right]$
in gas phase at $318 \,K$ are given below:
$t/s$
$0$
$400$
$800$
$1200$
$1600$
$2000$
$2400$
$2800$
$3200$
${10^2} \times \left[ {{N_2}{O_5}} \right]/mol\,\,{L^{ - 1}}$
$1.63$
$1.36$
$1.14$
$0.93$
$0.78$
$0.64$
$0.53$
$0.43$
$0.35$
$(i)$ Plot $\left[ N _{2} O _{5}\right]$ against $t$
$(ii)$ Find the half-life period for the reaction.
$(iii)$ Draw a graph between $\log \left[ N _{2} O _{5}\right]$ and $t$
$(iv)$ What is the rate law $?$
$(v)$ Calculate the rate constant.
$(vi)$ Calculate the half-life period from $k$ and compare it with $(ii)$.
The experimental data for decomposition of $N _{2} O _{5}$
$\left[2 N _{2} O _{5} \rightarrow 4 NO _{2}+ O _{2}\right]$
in gas phase at $318 \,K$ are given below:
| $t/s$ | $0$ | $400$ | $800$ | $1200$ | $1600$ | $2000$ | $2400$ | $2800$ | $3200$ |
| ${10^2} \times \left[ {{N_2}{O_5}} \right]/mol\,\,{L^{ - 1}}$ | $1.63$ | $1.36$ | $1.14$ | $0.93$ | $0.78$ | $0.64$ | $0.53$ | $0.43$ | $0.35$ |
$(i)$ Plot $\left[ N _{2} O _{5}\right]$ against $t$
$(ii)$ Find the half-life period for the reaction.
$(iii)$ Draw a graph between $\log \left[ N _{2} O _{5}\right]$ and $t$
$(iv)$ What is the rate law $?$
$(v)$ Calculate the rate constant.
$(vi)$ Calculate the half-life period from $k$ and compare it with $(ii)$.
In a reaction if the concentration of reactant A is tripled, the rate of reaction becomes twenty seven times. What is the order of the reaction ?
In a reaction if the concentration of reactant A is tripled, the rate of reaction becomes twenty seven times. What is the order of the reaction ?
For which type of reactions, order and molecularity have the same value ?
For which type of reactions, order and molecularity have the same value ?
The rate of a gaseous reaction is given by the expression $K\,[A]\,[B]$. If the volume of the reaction vessel is suddenly reduced to $1/4^{th} $ of the initial volume, the reaction rate relating to original rate will be
The rate of a gaseous reaction is given by the expression $K\,[A]\,[B]$. If the volume of the reaction vessel is suddenly reduced to $1/4^{th} $ of the initial volume, the reaction rate relating to original rate will be