Why energy is involved in a chemical change?

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Solution

Energy is involved in a chemical change because of formation and breakdown of bonds. In exothermic reactions, energy is released and in endothermic reactions, energy is absorbed.

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Similar questions

Q. Compare the energy changes involved during a physical and a chemical change.

Explain in brief the involvement of energy in - physical & Chemical changes.

Thermodynamics is not concerned about
(a) energy changes involved in a chemical reaction
(b) the extent to which a chemical reaction proceeds
(c) the rate at which a reaction proceeds
(d) the feasibility of a chemical reaction

Consider the following statements:

(i) Chemical changes are irreversible.

(ii) Chemical changes produce new substances.

(iii) Chemical changes does not involve large energy changes.

Which among these are incorrect?

Q. All biochemical pathways involve changes in free energy, and the graph below illustrates one type of free energy change between reactants and products in a chemical reaction.
Which statement is a correct interpretation of the graph?

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Reaction with Diazonium Salts

Standard XII Chemistry

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Why energy is involved in a chemical change?​

Energy is involved in a chemical change because of formation and breakdown of bonds. In exothermic reactions, energy is released and in endothermic reactions, energy is absorbed.​

Why energy is involved in a chemical change?

Energy is involved in a chemical change because of formation and breakdown of bonds. In exothermic reactions, energy is released and in endothermic reactions, energy is absorbed.