Question

3. Give reason for the following observations.
(a) Naphthalene balls disappear with time without leaving
any solid.
(b) We can get the smell of perfume sitting several metres
away.​

Answer 1

hello everyone ❣❣

1. naphthalene balls disappear with time without leaving any solid because they experience sublimation in which is directly changes into gas without leaving any solid or liquid...

2. we can get the smell of perfume sitting several metres away because molecules of matter are continuously moving and have high kinetic energy..

Answer 2

Answer:

because it get converted into gas by process of sublimation

we can get smell of perfume because of kinetic energy of perfume