Give reason for the following observation :The smell of hot sizzling food reaches us even from a considerable distance but to get the smell from cold food, we have to go close to it.
The rate of diffusion of hot gas is faster than cold gas. Hence, the particles have greater kinetic energy when the gas is hot and moves faster. Therefore, the smell of hot sizzling food reaches us even from a considerable distance but to get the smell from cold food, we have to go close to it.
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