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How calulate activation energy of first order reaction

How calulate activation energy of first order reaction

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A)
Arrhenius proposed an equation that relates these concepts with the rate constant:

$k = Ae^{\frac{-Ea}{RT}}$

where k represents the rate constant,

 Ea is the activation energy,

R is the gas constant (8.3145 J/K mol), and

T is the temperature expressed in Kelvin.

A is known as the frequency factor, having units of $Lmol^{-1} s^{-1}$
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