Question

give reason. .... the smell of hot sizzling food reaches you several meters away.., but the smell of cold food you have to go close to the..... why?

Answer 1

 here you go with answer  The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go close because the kinetic energy of the particles of matter increases with the increase in temperature....

Answer 2

this is because the particle's of matter are constantly moving and in cases cases where temperature is high like in case of hot food, the rate of moving of particles or diffusion increases. So we are able to smell hot food even from a considerate distance