Question

Rate of a reaction can be expressed by Arrhenius equation as
: k = Ae–Eₐ/RT
In this equation, Eₐ represents
(a) the total energy of the reacting molecules at a
temperature, T
(b) the fraction of molecules with energy greater than the
activation energy of the reaction
(c) the energy below which all the colliding molecules will
react
(d) the energy below which colliding molecules will not react

Answer 1

b) the fraction of molecules with energy greater than the

activation energy of the reaction is the correct answer

Answer 2

Rate of a reaction can be expressed by Arrhenius equation as

k = Ae–Eₐ/RT

In this equation, Eₐ represents the energy below which colliding molecules will not react.

Explanation:

Arrhenius equation

• At the level of molecule the direction to motion is proportional to thermal energy.
• The Svante Arrhenius, the Swedish chemist combined the 'Boltzmann distribution law' and activation energy concept.

                k = A$e^{-Ea / RT}$

1. Gas constant is R
2. Rate constant is k
3. Activation energy is Ea
4. Temperature T expressed in kelvin
5. Frequency factor A

• Once the activation energy rises the rate constant and rate of reaction decreases.
• The energy needed by molecules to react in the activation energy.

To learn more;

1. https://brainly.in/question/2017418
2. https://brainly.in/question/2917649