Question

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

Answer 1

Answer:

The particles of hot sizzling food have more kinetic energy and thus , diffuse rapidly in the air as compared to cold food which posses less kinetic energy.

Explanation:

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.

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Answer 2

When food is hot, diffusion is more. But in cold food diffusion is slow. Hence to get the smell from cold food we have to go close.