PYQ NEET- Chemical Kinetics L-6

Question: The slope of Arrhenius plot $\left(\ln k v / s \frac{1}{T}\right)$ of first order reactino is $-5 \times 10^3 \mathrm{~K}$. The value of $\mathrm{E}_{\mathrm{a}}$ of the reaction is. Choose the correct option for your answer.#

[Given $\mathrm{R}=8.314 \mathrm{JK}^{-1} \mathrm{~mol}^{-1}$ ]

A) $-83 \mathrm{~kJ} \mathrm{~mol}^{-1}$

B) $41.5 \mathrm{~kJ} \mathrm{~mol}^{-1}$

C) $83.0 \mathrm{~kJ} \mathrm{~mol}^{-1}$

D) $166 \mathrm{~kJ} \mathrm{~mol}^{-1}$

Answer: $41.5 \mathrm{~kJ} \mathrm{~mol}^{-1}$#