Question

give reasons for the following observations The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go

Answer 1

hot foods smell goes farther bcoz the particles of smell will diffuse air in form of smoke so by diffusion of smell particles it happens

Answer 2

When food is hot, diffusion is more. But in cold food diffusion is slow. Hence to get the smell from cold food we have to go close.