Question

why does smell of perfume spread in room so gradually?

Answer 1

Answer:

because it a exothermic reaction.

Answer 2

The smell of the perfume will spread gradually in the room bcoz of "diffusion."

the solid substances present in the perfume is much stronger than present in the gaseous state.

normally the order of gaseous state has no order but liquid state has less order.

so of the gaseous state the perfume spread in-room gradually.