Question

Why does the smell of hot sizzling food reach us several metres away but not in the case of cold food?

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.

Answer 2

because the particles of hot sizzling food have more kinetic energy so it reaches to us several meters away