What Molecules in Air Hit Dust Particles?

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In summary, the conversation was about a question on a chemistry test regarding which part of air hits dust particles. The question was deemed too vague and difficult to answer by the participants.
  • #1
Mozart
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On a chemistry test I just had one of the questions was. Which part of air hits dust particles? I just didn't know what to write. Some of my friends said that nothing hits it, and that it moves simply because it has kinetic energy and then other people said it was N2 that hits it. Does anyone know what the real answer is?
 
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  • #2
We'd like to know what the real question is.

Which part of air hits dust particles?
If this is all there is to the question, it's not worth wasting your time trying to answer it. The question, as quoted, is too vague and ill-defined to appear on a science test. Whoever made the test did a terrible job.
 
  • #3


The real answer is that both statements are partially correct. Dust particles in the air are constantly bombarded by various molecules, including nitrogen (N2), oxygen (O2), and other gases present in the atmosphere. These collisions provide the dust particles with kinetic energy, causing them to move and disperse in the air. However, it is not accurate to say that "nothing hits" the dust particles, as they are indeed being impacted by the surrounding air molecules. So, the correct answer would be that N2 and other molecules in the air hit the dust particles, providing them with kinetic energy and causing them to move.
 

Related to What Molecules in Air Hit Dust Particles?

1. What is the composition of air?

The air we breathe is primarily made up of nitrogen (78%), oxygen (21%), and trace amounts of other gases such as carbon dioxide, argon, and water vapor.

2. Which component of air is responsible for hitting dust particles?

The oxygen molecules in air collide with dust particles, causing them to move and disperse.

3. How does air move dust particles?

Air currents, such as wind or the movement of objects, can push dust particles and cause them to move through the air. Additionally, the random collisions of air molecules can also cause dust particles to move and scatter.

4. Does temperature affect the movement of dust particles in air?

Yes, temperature can affect the movement of dust particles in air. Warmer air tends to be more turbulent and can cause dust particles to move more erratically.

5. Can dust particles travel long distances in air?

Yes, dust particles can travel long distances in air, especially if carried by strong winds. This is why dust storms and pollution can impact areas far from their source.

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