1.

The Arrhenius equation which relates the rate constant (k), activation energy (Ea) andTemperature(T) is *(a) k=A²e⁻ᴱᵃ/ᴿᵀ(b) k= A e⁻²ᴱᵃ/ᴿᵀ(c) k=A e⁻ᴱᵃ/ᴿᵀ(d) k=Ae⁻ᴱᵃ/²ᴿᵀ​

Answer»

Arrhenius Equation :

\boxed{ \sf k = A {e}^{ - Ea/RT}}

OPTION c) is correct !

Let's DEFINE the terms:

  • 'A' is a pre-exponential factor or frequency.

  • e^{(-Ea/RT)} represents the fraction of molecular collisions with ADEQUATE energy LEVELS needed to overcome the Activation Barrier of the reaction at that specific TEMPERATURE T.

  • ''k' is rate constant.

  • ''R' is Gas Constant, 'T' is temperature (in Kelvin).

Now, if we take ln on both sides :

\boxed{ \sf ln(k) = - \dfrac{ E_{a} }{RT} + ln(A) }


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