Give reasons 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.
[2 Marks]

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Solution

Particles of hot sizzling food possess high kinetic energy and diffuse in air rapidly. Therefore, they reach several metres away and we get the smell of hot food from a distance.
[1 Mark]
Whereas, the particles of cold food possess less kinetic energy. Therefore, the diffusion is less in this case, and they do not reach several metres away. So, we have to go close to get the smell of cold food.
[1 Mark]

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Give reasons for the following observation: The smell of hot sizzling food reaches you several meters away, but to get the smell from cold food you have to go close. [2 MARKS]

Q. Question 2
Give reasons 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.

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Give reasons 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. [2 Marks]

Give reasons 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.
[2 Marks]