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Give reason for the following observations: …

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Give reason for the following observations: The smell of hot sizzling food reaches you several metres away,but to get the smell from cold food you have to go close.

Posted by Priyanginee Gogoi 1 year, 7 months ago

CBSE > Class 09 > Science

3 answers

Mudit Jain 1 year, 7 months ago

Because of diffusion

Anindya Gantait 1 year, 7 months ago

It is because the when the temperature rises, the kinetic energy of the particles is high, whereas in low temperature (cold) the kinetic energy of the particles not so high. That is why the smell of hot sizzling food reaches you several metres away,but to get the smell from cold food you have to go close. As the kinetic energy increases, The particles move freely i.e. in gaseous form which mixes with air and reaches us. This process is also called diffusion

Tanishka Jhamb 1 year, 7 months ago

It is because the when the temperature rises, the kinetic energy of the particles is high, whereas in low temperature (cold) the kinetic energy of the particles not so high. That is why the smell of hot sizzling food reaches you several metres away,but to get the smell from cold food you have to go close.

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