Question

The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go close. Why?

Answer 1

Particles of matter are continuously moving.
They possess the kinetic energy.

As the temperature rises, particles move faster. Thus, particles that carry smell of hot sizzling food move faster than the smell of the cold food.

Therefore, the smell of hot sizzling food can reach us several metres away, but to get smell from a cold food you have to go close.