Question

In a mixture, no heat changes occur while mixing.

• A. True
• B. False

Answer 1

The correct option is A True

• A mixture is formed when atoms or molecules of the same or different particles combine with each other physically.
• For example - Air is a mixture of gases like Carbon dioxide $\left({\mathrm{CO}}_2\right)$, Nitrogen $\left({\mathrm{N}}_2\right)$, Oxygen $\left({\mathrm{O}}_2\right)$, etc; dust, Water vapors $\left({\mathrm{H}}_2\mathrm{O}\right(\mathrm{g}\left)\right)$.
• Energy change always takes place whenever there is a formation of a chemical bond.
• Since, there is no chemical bond formation that takes place in the formation of a mixture, hence, no energy change will take place.

Hence, The given statement is True.