Question

# Arrhenius studied the effect of temperature on the rate of a reaction and postulated that rate constant varies with temperature exponentially as k=Ae−EaRT This method is generally used for finding the activation energy of a reaction. Keeping temperature constant, the effect of catalyst on the activation energy has also been studied. If x is the fraction of molecules having energy greater than Ea it will be given by:x=EaRTx=eEa×RTAny of theseln x=−EaRT

Solution

## The correct option is D ln x=−EaRTIn the Arrhenius equation the factor e−EaRT corresponds to the fraction of molecules that have kinetic energy greater than Ea.  x=e−EaRT Taking natural logarithm of both sides of the equation ln x=−EaRT

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