physics · 11

Kinetic Theory of Gases

Kinetic theory explains how gas particles move and behave. It says that gases are made of tiny particles constantly moving in random directions and co

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Why cannot we see gas particles if they exist?

Gas particles are incredibly small, typically just nanometers in size. A nanometer is a billionth of a meter. Even powerful microscopes cannot see individual gas molecules, though we can see effects of billions of them moving together.

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What happens to gas particles in absolute zero?

Absolute zero (-273.15 degrees Celsius) is theoretical. At absolute zero, kinetic energy would be zero and particles would stop moving. But absolute zero cannot actually be reached in practice, though scientists have created temperatures very close to it.

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Do all gases follow kinetic theory equally well?

Most gases follow kinetic theory well at room temperature and normal pressure. Lighter gases like helium and hydrogen follow it better than heavier gases. At very high pressure or very low temperature, even light gases deviate from ideal behavior.

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