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Arrhenius Equation

Arrhenius equ...

Question

Arrhenius equation is represented by ________.

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Solution

Arrhenius equation is represented by $k = A e^{- E a / R T}$ . It gives the relationship between the rate constant, temperature, the frequency factor and the energy of activation.
Here, k is the rate constant, A is the frequency factor, Ea is the energy of activation, R is the ideal gas constant and T is absolute temperature.

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Q. Rate of a reaction can be expressed by Arrhenius equation as,

k = A e^{- E / R T}

. In this equation,

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Q. The temperature dependence of a reaction is represented by the Arrhenius equation:

l n k = - \frac{E_{a}}{R T} + l n A

Which of the following is wrong conclusion about the given plot ?

Q. Rate constant of a reaction can be expressed by Arrhenius equation as,

k = A e^{- E / R T}

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The rates of chemical reactions are strongly affected by temperature. Arrhenius (1889) gave following relation between rate constant and temperature:

k = A e^{- E_{a} / R T}

This equation is called Arrhenius equation. The constant '

A

' is called Arrhenius constant or pre-exponential factor.

The logarithm of Arrhenius equation is:

{log}_{10} k = {log}_{10} A - \frac{E_{a}}{2.303 R T}

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{log}_{10} k = 14 - \frac{1.25 \times 10^{4} K}{T}

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{m o l}^{- 1}

Q. In the Arrhenius equation,

k = A e^{- E_{a} / R T}

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A

will be equal to the rate constant when:

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