First slide

Collision theory

Question

In Arrhenius equation, the fraction of molecules that have kinetic energy equal to or greater than $E_{a}$ is given by

Moderate

A

$e^{\frac{- E_{a}}{RT}}$
B

$\frac{E_{a}}{RT}$
C

$e^{\frac{E_{a}}{RT}}$
D

$\frac{- E_{a}}{RT}$

Solution

Molecules having energy greater than or equal to threshold energy are activated molecules.
$e^{- \frac{E_{a}}{RT}}$ gives the fraction of activated molecules of a reaction

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