Question

Why does our palm feel cold when we put some perfume on it?

Answer 1

Step-1: Evaporation- The phenomenon of change of a liquid into its gaseous state at any temperature below its boiling point is known as evaporation.

Step-2: Volatile liquids- A volatile liquid is one in which evaporates quickly.

Examples: Acetone (${\mathrm{CH}}_3-\mathrm{CO}-{\mathrm{CH}}_3$ ), petrol or perfume

When acetone, petrol or perfume is poured over the palm, it evaporates quickly as these are volatile liquids. The evaporation lowers the temperature of palm and our palm feels cold.