Question

give reason
chemistry and physics
please answer​

Answer 1

Answer:

we can smell due to nose

Explanation:

naphathalene ball disappeared due to presence of air they evaporate in the form of gas hence u will find no solids

Answer 2

1) When perfume is released it quickly changes into vapour. The kinetic energy of gas molecules is high & the rate of diffusion is high. Hence we can smell the perfume sitting several metres away.

2) Naphthalene balls sublimes therefore it directly converts into vapour form without undergoing the liquid phase.

3) The moving particles in a gas collide with each other and also with the walls of the container and due to these collisions, Gases exert pressure on the walls of the container.