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.
Solution:
The particles of hot sizzling food possess high kinetic energy due to high temperature. Due to high kinetic energy, these particles moves rapidly in the air. In contrast, the particles of cold food possess less kinetic energy due to low temperature hence, its smell does not spreads to longer distances.
The particles of hot sizzling food possess high kinetic energy due to high temperature. Due to high kinetic energy, these particles moves rapidly in the air. In contrast, the particles of cold food possess less kinetic energy due to low temperature hence, its smell does not spreads to longer distances.