If 'x' is the fraction of molecules having energy greater than $E_{a}$ , it will be given by :

x = - \frac{E_{a}}{R T}

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l n x = - \frac{E_{A}}{R T}

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x = e^{E_{a} / R T}

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Solution

The correct option is B $l n x = - \frac{E_{A}}{R T}$
'x' is the fraction of molecules having energy greater than $E_{a}$ .
Then, $x = e^{- E_{a} / R T}$ or $l n x = - \frac{E_{a}}{R T} .$

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