Topic: Diffusion. Why can we smell hot food from a distance? Hey. Looks like you have lost your way. No. I know the way. Fine. Don't listen. See, I told you. Now listen to me. There is a restaurant next to your house where hot sizzling food is available, right? Yeah. Yummy. Follow its smell and you will reach home. I have reached home.
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food, you have to go close. Ans. This happens because the rate of diffusion of a gas increases with increase in temperature. In the case of hot food, diffusion of smell is faster than cold food. Q.3. A diver is able to cut through water in a swimming.
Q2: Give reasons why smell of hot sizzling food reaches you several meters away, but to get smell from cold food you have to go close? Answer: The smell of hot food reaches us because the rate of diffusion of gases increases with increase in temperature.
The smell of hot sizzling food reaches you several metres away, but to get the smell from cold food you have to go close. Reason Kinetic Energy. Particles of hot sizzling food possess large kinetic energy and diffuse in air rapidly and reach several metres away.
Hence, the smell of hot sizzling food reaches us even at a distance, but to get the smell from cold food we have to go close. Video Solution for matter in our surroundings (Page: 3, Q.No.: 2) NCERT Solution for Class 9 science - matter in our surroundings 3, Question 2.
The smell of hot sizzling food reaches you several meters way, but to get the smell from cold food you have to go close. Ans. Since hot sizzling food has temperature higher than cold food and at higher temperature diffusion rate (movement) of particles is very fast due to this the smell of hot sizzling reaches us from several meters away. 2. The mass per unit volume of substance is called.
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: Solids diffuse at a very slow rate. But, if the temperature of the solid is increased, then the rate of diffusion of the solid particles into air increases. This is due to an increase in the kinetic energyof solid particles. Hence, the smell of hot sizzling food.