Which of the following statements is correct?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(D) The Arrhenius equation is given by $k = A e^{-E_a / RT}$.As $T 	o \infty$,the term $E_a / RT 	o 0$.Therefore,$k = A e^0 = A 	imes 1 = A$.Thus,t

Vedclass · Accepted Answer

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

Vedclass · Answer

(D) The Arrhenius equation is given by $k = A e^{-E_a / RT}$.As $T 	o \infty$,the term $E_a / RT 	o 0$.Therefore,$k = A e^0 = A 	imes 1 = A$.Thus,the rate constant $k$ becomes equal to the pre-exponential factor $A$ at infinite temperature.Molecularity is always a whole number (integer) and cannot be fractional or zero.Zero order reactions do stop when the reactant is completely consumed.First order reactions can be either homogeneous or heterogeneous.

$T / ^{\circ}C$	$0$	$20$	$40$	$60$	$80$
$10^{5} \times k / s^{-1}$	$0.0787$	$1.70$	$25.7$	$178$	$2140$

Similar Questions

Write the Arrhenius equation representing the relationship between the rate constants $k_1$ and $k_2$ at two different temperatures $T_1$ and $T_2$.

The half-life of a first order reaction varies with temperature according to

At a constant temperature,the activation energy of a reaction is found to be $2.303 \, RT \, J \, mol^{-1}$. The ratio of the rate constant to the Arrhenius constant will be $......$.

For a chemical reaction,if the temperature is increased from $25\,^{\circ}C$ to $55\,^{\circ}C$,the rate of reaction will change by a factor of (Assume $\mu = 3$).

Vedclass Test Series

Exam Paper Generator

Online Exam Module