When smoke particles are observed through a microscope in a smoke cell which is illuminated from the side. (a) What observation is made? (1mk) (b) How can you tell which particles are larger? (1mk) (c) What change on their motion would be observed if the temperature
Question
When smoke particles are observed through a microscope in a smoke cell which is illuminated from the side. (a) What observation is made? (1mk) (b) How can you tell which particles are larger? (1mk) (c) What change on their motion would be observed if the temperature
Solution
(a) When smoke particles are observed through a microscope in a smoke cell that is illuminated from the side, you would observe a random, zigzag motion of the particles. This is known as Brownian motion.
(b) The larger particles can be identified by their slower movement compared to the smaller particles. This is because larger particles have more mass, which makes them move slower than smaller particles.
(c) If the temperature were to increase, the motion of the particles would also increase. This is because an increase in temperature means an increase in energy, which translates to faster movement of the particles. Conversely, if the temperature were to decrease, the motion of the particles would also decrease.
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