Question

All the following energies are part of the reaction profile except

a. activation energy

b. reaction enthalpy

c. first ionization energy

d. bond enthalpies

Answer 1

Ans :- Option (a) i.e. activation energy is the answer.

Because, activation energy is the minimum amount of energy required for reacting species to bring the formation of products.

Minimum is the activation energy of a reaction faster will be the rate of a chemical reaction and activation energy is lower by catalyst.

Reaction enthalpy is the overall change in energy of a reaction

first ionization energy is the amount of energy required to remove an electron in an atom or ion in its isolated gaseous state.

bond enthalpy is the amount of energy required to break the bond.

and for a chemical reaction :

Reaction enthalpy = first ionization enthalpy + bond enthalpy .

Therefore, option (a) is the answer.