Question

give reason for the following observation the smell of hot sizzling food reaches you several metres Away full stop but to get the smell from cold food you have to go close why​

Answer 1

when the temperature of the medium increases then the rate of diffusion increses and when the temperature decrease then the rate of diffusion decreses and due to this the we observe the smell of hot sizzling food from away and go close for the smell of cold food.

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.