Lecture25

# Lecture25 - Chapter 19 The Kinetic Theory of Gases PHYS...

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Chapter 19 The Kinetic Theory of Gases 1 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010

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19.9. Degrees of freedom and molar specific heat 2 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010 Molar specific heat C V – at constant volume – heat transfer at constant volume – molar specific heat Molar specific heat C p – at constant pressure The above C V and C p are correct for only a monatomic gas!
19.9. Degrees of freedom and molar specific heat 3 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010 Equipartition of energy theorem: Every kind of molecule has a certain number f of degrees of freedom. Each degree of freedom stores energy equal to (1/2)kT per molecule, or (1/2)RT per mole. Molar heat capacity of gas with f degree of freedom of the molecules: – at constant volume – at constant pressure K = (1/2)I 2

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19.9. Degrees of freedom and molar specific heat 4 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010
19.11. The Adiabatic Expansion of an Ideal Gas 5 PHYS 2101, P.M.Shikhaliev LSU, Fall 2010 (isothermic process) = C P /C V

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19.11. Free Expansion of an Ideal Gas
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## This note was uploaded on 01/26/2011 for the course PHYS 2101 taught by Professor Grouptest during the Spring '07 term at LSU.

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Lecture25 - Chapter 19 The Kinetic Theory of Gases PHYS...

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