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

 

Answer

The temperature of hot food is more than cold food, the particles of matter surrounding the hot food would have more kinetic energy than the particles of matter surrounding cold food. 

We know that, the higher the temperature of a substance, the more will be its kinetic energy, and hence the faster it will travel.

Hence, the smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close.

Particles of hot food have more -Teachoo-01.jpg

  1. Class 9
  2. Chapter 1 Class 9 - Matter In Our Surroundings (Deleted)

About the Author

CA Maninder Singh's photo - Founder at Teachoo
CA Maninder Singh
CA Maninder Singh is a Chartered Accountant for the past 11 years and a teacher from the past 11 years. He teaches Science, Accounts and English at Teachoo