Question

we can get thesmell of hot sizzling food from several metres away but to get the of cold food we have to go close why

Answer 1

Answer:

Hi there mate!

let me help you

see, when we heat food, or cook hot food, the molecules of the liquid present in the food gains enough kinetic energy to overcome the intermolecular force of attraction ad thereby evapourates. Because it has a high kinetic energy, it will spread more quickly in the air, as compared to cold food.

Hope you liked the answer

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.