Lecture_24

Lecture_24 - KE trans = 3 2 k B T KE tot =N ( KE trans ) =...

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Gases
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Kinetic Theory Assumptions: Particles spend most of their time moving freely. Newton's Laws can be used to describe individual particles Collisions are elastic. Mean free path defines distance between collisions Dilute gases contain many particles so statistics can be used.
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Internal Energy Recall, for one molecule: Then For a monatomic gas For a polyatomic gas, we need to account for rotational kinetic energy.
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Unformatted text preview: KE trans = 3 2 k B T KE tot =N ( KE trans ) = 3 2 Nk B T U= 3 2 Nk B T Heat Capacity heat capacity = Q T = 3 2 Nk b , constant volume Specific heat per mole, constant volume: C v = 3 2 R Diffusion l V N t= ( r ) 2 D Different than spacing between molecules Applications Drug Delivery, Isotope Separation, Brownian motion and the discovery of atoms, arrow of time....
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Lecture_24 - KE trans = 3 2 k B T KE tot =N ( KE trans ) =...

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