Which of the following is correct ?

  • A

    molecularity of a reaction can be fractional

  • B

    Zero order reaction never stops

  • C

    A first order reaction must be homogeneous

  • D

    The rate constant of a reaction becomes equal to the pre-exponential factor when the absolute temperature is infinity.

Similar Questions

The hypothetical reaction : $2A + B \to C + D$ is catalyzed by $E$ as indicated in the possible mechanism below -

Step$-1$ : ${\text{A  +  E }} \rightleftharpoons AE$ (fast)

Step$-2$ :${\text{AE  +  A }} \to {A_2} + E$ (slow)

Step$-3$ :${{\text{A}}_2}{\text{ +  B }} \to {\text{D}}$ (fast)

what rate law best agrees with this mechanism

Which of the following is the fastest reaction

The conversion of $A \to B$ follows second order kinetics. Doubling the concentration of $A$ will increase the rate of formation of $B$ by a factor

The experimental data for the reaction $2A + {B_2} \to 2AB$ isThe rate equation for the above data is

Exp.

$[A]_0$

$[B]_0$

Rate (mole $s^{-1}$)

$(1)$

$0.50$

$0.50$

$1.6 \times {10^{ - 4}}$

$(2)$

$0.50$

$1.00$

$3.2 \times {10^{ - 4}}$

$(3)$

$1.00$

$1.00$

$3.2 \times {10^4}$

  • [AIPMT 1997]

Following is the rate constant of reaction what is the overall order of reaction ?

$(a)$ $2.418 \times 10^{-5}\,hr ^{-1}$

$(b)$ $7.1 \times 10^{-4} \,atm \,s ^{-1}$