Write the logarithmic form of the Arrhenius equation $k = A e^{-\frac{E_a}{RT}}$.

Vedclass pdf generator app on play store
Vedclass iOS app on app store
(N/A) The Arrhenius equation is given by: $k = A e^{-\frac{E_a}{RT}}$
Taking the natural logarithm $(\ln)$ on both sides:
$\ln k = \ln(A e^{-\frac{E_a}{RT}})$
Using the logarithmic property $\ln(xy) = \ln x + \ln y$:
$\ln k = \ln A + \ln(e^{-\frac{E_a}{RT}})$
Since $\ln(e^x) = x$,we get:
$\ln k = \ln A - \frac{E_a}{RT}$
Alternatively,converting to base $10$ logarithm $(\log_{10})$:
$\log_{10} k = \log_{10} A - \frac{E_a}{2.303 RT}$

Explore More

Similar Questions

Decomposition of a hydrocarbon follows the equation $k = (5.5 \times 10^{11} \text{ s}^{-1}) e^{\frac{-28000 \text{ K}}{T}}$. The activation energy of the reaction is . . . . . . $\text{kJ mol}^{-1}$. (Nearest Integer) Given: $R = 8.3 \text{ J K}^{-1} \text{ mol}^{-1}$

For a first-order gaseous reaction,a plot of $\log \, k$ versus $1/T$ gives a straight line with a slope of $-8000$. Calculate the activation energy $(E_a)$ of the reaction in $cal$.

For an elementary chemical reaction, the Arrhenius plot is given below. If the energy of activation is $6.64 \ kJ \ mol^{-1}$ and $R = 8.3 \ J \ K^{-1} \ mol^{-1}$, the temperature at which the rate constant becomes $e^2 \ min^{-1}$, is (in $K$)

The minimum energy necessary to permit a reaction is

For a first order reaction $(A \rightarrow B)$,the temperature $(T)$ dependent rate constant $(k)$ in $s^{-1}$ was found to follow the equation: $\log k = \left(-\frac{20}{T}\right)+4$. The activation energy $(E_a)$ and pre-exponential factor $(A)$ respectively,are

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo