Question

Energy exchanges take place:

• A. in the formation of the mixture
• B. in the formation of a solution
• C. in the formation of compound

Answer 1

Answer: (A), (B), (C)

in the formation of compound

Explanation for correct options:

Option (a) in the formation of the mixture

• A set percentage of components by mass is always present in mixtures and compounds.
• As compounds, some energy exchange happens during the production of mixtures.
• So, during the production of a mixture, some energy (e.g., heat, light, or electrical energy) is emitted or absorbed.
• During the formation of a mixture, there is a chemical reaction that takes place and in a chemical reaction, there are different forms of energy released or formed.
• Hence, this option is correct

Option (b) formation of a solution

• Energy is given or released during a chemical reaction after the production of the product or when heat or external energy is introduced to induce the reaction.
• The difference in the quantities of stored chemical energy between the products and the reactants causes the energy change in a chemical reaction.
• The energy is released or generated during chemical processes.
• The solute dissolves in the solvent during solution formation, and energy is absorbed and utilised to break the bond.
• The energy is released once a solution is produced.

Option (c) formation of compound

• Similarly, during compound formation, the bonds of the reactants are broken first, followed by the production of new bonds.
• There is an exchange of energy in all compounds.

So, all options are correct.