Question

use the particle model of matter to explain why the smell of cooking can drift from the kitchen to the living room even when there is no wind .by marshall cavendish

Answer 1

the air particles having the aroma of the cooked food are hot i.e. they have high temperature due to which the particles start moving and pass the vibrations of their particles to the surrounding air particles and spread kinetic energy..this energy slowly gets passed to the other particles of air and reach the living room and we are able to smell it..moreover there is no need of wind for this  natural phenomena to occur.....
hence justified..

Answer 2

Answer:This is because of diffusion

Explanation: The smell of cooking can drift from kitchen to living room even when there is no wind because the tiny particle of liquid and gases move randomly in no fixed direction .Over time, the random movement will result in particles spreading out from a region of higher concentration  to a region of lower concentration