Question

The smell of hot sizzling food reaches several metres away, but to get the smell from cold food, we have to go close. Which of the following reason suits the best?

• A. Lower the temperature, higher the kinetic energy of food particles
• B. Higher the temperature, higher the kinetic energy of food particles
• C. Higher the temperature, lower the kinetic energy of the food particles
• D. Kinetic energy of food particles changes irrespective to temperature

Answer 1

The correct option is B

Higher the temperature, higher the kinetic energy of food particles

As the temperature increases, the kinetic energy of food particles increases so the particles move faster. However, a cold food particle has less kinetic energy, so the speed of particle movement in above case is much slower. Therefore, we cannot smell cold food throughout the room.