If Efand Ebare the activation energies of the forward and reverse reactions and the reaction is known to be exothermic, then:a)Ef= Ebb)Ef< EbData insufficient to predictc)f< EbData insufficient to predictd)Ef> EbCorrect answer is option 'B'. Can you explain this answer?

Question

If Efand Ebare the activation energies of the forward and reverse reactions and the reaction is known to be exothermic, then:a)Ef= Ebb)Ef&#60; EbData insufficient to predictc)f&#60; EbData insufficient to predictd)Ef&#62; EbCorrect answer is option 'B'. Can you explain this answer?

Answer

The correct answer is Option B.

For exothermic reaction, ΔH<0
E_b = E_f+ ∣ΔH∣ or
E_f < E_b

Answer

In an exothermic reaction heat is liberated..so for backward reaction we need more energy to activate the products...so activation energy in backward direction should greater than in forward....so Eb>Ef

Answer

Explanation:

Activation Energy (Ea):
Activation energy is the minimum amount of energy required for a chemical reaction to occur. It is the energy barrier that must be overcome for the reaction to proceed.

Exothermic Reaction:
An exothermic reaction is a chemical reaction that releases energy in the form of heat. In an exothermic reaction, the reactants have a higher energy level than the products, so energy is released during the reaction.

Forward and Reverse Reactions:
In a chemical reaction, there are both forward and reverse reactions occurring simultaneously. The forward reaction is the conversion of reactants into products, while the reverse reaction is the conversion of products back into reactants.

Activation Energies of Forward and Reverse Reactions:
The activation energy of the forward reaction (Ef) is the energy required for the reactants to overcome the energy barrier and convert into products. The activation energy of the reverse reaction (Eb) is the energy required for the products to overcome the energy barrier and convert back into reactants.

Exothermic Reaction and Activation Energies:
In an exothermic reaction, the products have a lower energy level than the reactants. This means that the energy of the products is less than the energy barrier required for the reverse reaction to occur. Therefore, the activation energy of the reverse reaction (Eb) is higher than the activation energy of the forward reaction (Ef).

Answer:
If Ef and Eb are the activation energies of the forward and reverse reactions, and the reaction is known to be exothermic, then the activation energy of the forward reaction (Ef) would be lower than the activation energy of the reverse reaction (Eb). Therefore, the correct answer is option 'B' - Ef < eb.='' />

Answer

The correct answer is Option B.

For exothermic reaction, ΔH<0
E_b = E_f+ ∣ΔH∣ or
E_f < E_b

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