Question

why a hot sizzling foods smell reaches us from a distance but not in a cold food

Answer 1

hot sizzling food contains kinetic energy due to which it moves very quickly and reaches our nose.in case of cold food the kinetic energy is reduced due to which the speed of smell is reduced.

Answer 2

The smell of a food is a gaseous state of matter . The smell of the hot food have greater kinetic energy as compared to the smell of cold food.therefore the smell of the hot sizziling food reaches us several meters away but it is not the same in the case of cold food.