Medium
The hypothetical reaction : $2A + B \to C + D$ is catalyzed by $E$ as indicated in the possible mechanism below -
Step-$1$ : $A + E \rightleftharpoons AE$ (fast)
Step-$2$ : $AE + A \to A_2 + E$ (slow)
Step-$3$ : $A_2 + B \to C + D$ (fast)
What rate law best agrees with this mechanism?
Step-$1$ : $A + E \rightleftharpoons AE$ (fast)
Step-$2$ : $AE + A \to A_2 + E$ (slow)
Step-$3$ : $A_2 + B \to C + D$ (fast)
What rate law best agrees with this mechanism?
- A$r = k[A][B]$
- B$r = k[A][E]$
- C$r = k[A]^2[E]$
- D$r = k[A]^2[B]$
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If $a$ is the initial concentration of the reactant,the half-life period of the reaction of $n^{th}$ order is inversely proportional to
Medium
View SolutionAssertion : The kinetics of the reaction $mA + nB + pC \to m'X + n'Y + p'Z$ obey the rate expression as $\frac{dX}{dt} = k[A]^m[B]^n$.
Reason : The rate of the reaction does not depend upon the concentration of $C$.
Reason : The rate of the reaction does not depend upon the concentration of $C$.
DifficultAIIMS 2017
View SolutionDuring the kinetic study of the reaction,$2A + B \rightarrow C + D,$ the following results were obtained:
$Run$ $[A] / mol \ L^{-1}$ $[B] / mol \ L^{-1}$ Initial rate of formation of $D / mol \ L^{-1} \ min^{-1}$ $I.$ $0.1$ $0.1$ $6.0 \times 10^{-3}$ $II.$ $0.3$ $0.2$ $7.2 \times 10^{-2}$ $III.$ $0.3$ $0.4$ $2.88 \times 10^{-1}$ $IV.$ $0.4$ $0.1$ $2.40 \times 10^{-2}$
Based on the above data,which one of the following is correct?
| $Run$ | $[A] / mol \ L^{-1}$ | $[B] / mol \ L^{-1}$ | Initial rate of formation of $D / mol \ L^{-1} \ min^{-1}$ |
| $I.$ | $0.1$ | $0.1$ | $6.0 \times 10^{-3}$ |
| $II.$ | $0.3$ | $0.2$ | $7.2 \times 10^{-2}$ |
| $III.$ | $0.3$ | $0.4$ | $2.88 \times 10^{-1}$ |
| $IV.$ | $0.4$ | $0.1$ | $2.40 \times 10^{-2}$ |
Based on the above data,which one of the following is correct?
The value of the rate constant of a pseudo first order reaction:
Consider the following reaction: $A \longrightarrow \text{Products}$. This reaction is completed in $100 \ min$. The rate constant of this reaction at $t_1 = 10 \ min$ is $10^{-2} \ min^{-1}$. What is the rate constant (in $min^{-1}$) at $t_2 = 20 \ min$?
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