Question

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

Answer 1

because the particles of hot food usually diffuses into the air and thus we are able to smell them from far away Metres but this doesn't happens in cold food

Answer 2

The smell of hot sizzling food reaches us several meters away , because of the chemical property of DIFFUSION .

while the smell of cold food unable to reach us because there is no diffusion due to less kinetic energy .